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-   -   Project: Tow-Rat (Lil' Blue) (https://67-72chevytrucks.com/vboard/showthread.php?t=814071)

youngrodder 07-19-2021 09:07 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by 6DoF (Post 8947051)
gotta get it above the bottom of the frame to lay frame! haha

i'll also end up wrapping the whole thing to keep the heat in too.

Nah, just drag off anything below the frame....Its self correcting like that.

6DoF 07-19-2021 09:23 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by youngrodder (Post 8947053)
Nah, just drag off anything below the frame....Its self correcting like that.

:lol::lol:

i've done the whole self-clearance thing for fenders vs tires, but never tried to "polish the bottom smooth" :lol:

youngrodder 07-19-2021 09:32 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by 6DoF (Post 8947061)
:lol::lol:

i've done the whole self-clearance thing for fenders vs tires, but never tried to "polish the bottom smooth" :lol:

Ha ha ..Not sure what you are using for air management but I'm using Accuair. Man, I love the adjustability. I wanted a lower drive height so I dropped it another 1" all the way around and re-saved it as my "new" drive height it comes up to when I turn on the ignition. She drives real low now. I wanted to drive it a bit first before making an adjustment.

Marc

daddyjeep 07-19-2021 09:37 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by 6DoF (Post 8947049)
i feel like this could be a polarizing subject, but lets hear your thoughts either way.

Seat Belts / Harnesses

i went for bright orange to contrast the blue n white, and still thinking i'd like to do an orange firewall after seeing the Backyard 55's red. i just love the accent contrast. but that's not the touchy subject.

so i got 5pt harnesses and will be installing them as a 4pt. my goal is to be better off than a 3pt kit, not race-ready. legally i could have none, but that's stupid. i don't think anyone would hate on just a lap belt cuz that's easy and way better than nothing. however with the steering wheel close i wanted more than just the 2pt lap. so i was researching 3pt and it just didn't seam like enough. (there's a reason new cars also include air bags with a 3pt) between the belt stretch, ratchet time to catch, give in the cab corner steel even with a giant weld-washer, my weight as a big dude, and the proximity of the wheel, i just didn't think it would really help enough.

i run a 5pt harness in both jeeps and love em, so that's what i wanted. however trying to get a harness bar in the cab when i'm already basically leaning on the back wall was a rough fit. i saw guys who had a tube welded from cab corner to cab corner, but i'd be leaning on the tube all the time. then i thought about cutting out that whole inner structure below the glass for more space, or running a tube behind it, but the seat leans on it and that low is a dangerous mounting angle for the shoulder belts. another option would be to just bolt the harness tabs flat to the cab structure, but they aren't designed to function in bending and still just a single mounting bolt to the sheet metal. even with a big weld washer.

so here's my solution, the harness plate. it's 12" wide with more bolts to spread the load out over a lot larger area. it's heavy enough to withstand the perpendicular belt mounting, and it let me mount the belts up into the glass area for proper angle off my shoulders. should be nice n solid around town, and any accident hard enough to bend/pull the cab structure right below where it welds to the outer skin in the window, was hard enough it's all fawked anyways. should hold me up better than a 3pt for sure, but obviously not good enough for any form of racing.

I'm not sure the shape of your back wall there, but anyplace where you could add a 90 to your load plate would help quite a but. I might even consider extending it out to the corners with some bar stock, or better yet some angle.

That Jeep trail looked fun. I did the Great Lakes Jeep Jam myself... in a monsoon. It looks like the rain all stayed plenty notrth of you guys.

6DoF 07-19-2021 10:04 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by youngrodder (Post 8947063)
Ha ha ..Not sure what you are using for air management but I'm using Accuair. Man, I love the adjustability. I wanted a lower drive height so I dropped it another 1" all the way around and re-saved it as my "new" drive height it comes up to when I turn on the ignition. She drives real low now. I wanted to drive it a bit first before making an adjustment.

Marc

i've been eyeballing the Air Lift 3H/3P, but cant' bring myself to drop the coin yet. the auto height control and multiple set heights is really tempting though!

current plan will just be 4 manual switch paddle valves from ThorBros

6DoF 07-19-2021 10:16 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by daddyjeep (Post 8947066)
I'm not sure the shape of your back wall there, but anyplace where you could add a 90 to your load plate would help quite a but. I might even consider extending it out to the corners with some bar stock, or better yet some angle.

That Jeep trail looked fun. I did the Great Lakes Jeep Jam myself... in a monsoon. It looks like the rain all stayed plenty notrth of you guys.

the cab wall has a SLIGHT arc so i'll need something like a 3deg bend in the middle to help it sit more flush.

it's getting cut from 1/4" plate, and my thought was that even flat it would be enough stronger than the cab sheet that the cab would give before the plate would bend.

i'd love to tie it further around to the door frame structure or tie the plates together, but that's where i run into my shoulder again. i think this is the best i can get without MAJOR surgery. i think i met the goal of better than a 3pt, but to be race-ready i would basically have to cut off the back of the cab and add 12". an extended cab would be better in a lot of ways.

youngrodder 07-19-2021 10:22 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by 6DoF (Post 8947081)
i've been eyeballing the Air Lift 3H/3P, but cant' bring myself to drop the coin yet. the auto height control and multiple set heights is really tempting though!

current plan will just be 4 manual switch paddle valves from ThorBros

I used a manual set up from Air Ride in my last build. It worked fine, I just like the auto correct and adjustability of this one better. I saw a smoking deal on a (new) Accuair set up on FB for $800.00 for everything you would need (minus compressors and tanks. I stay away from the tank and valves all combined into one. Those have a high fail rate.

Marc

6DoF 07-19-2021 10:57 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by youngrodder (Post 8947087)
I used a manual set up from Air Ride in my last build. It worked fine, I just like the auto correct and adjustability of this one better. I saw a smoking deal on a (new) Accuair set up on FB for $800.00 for everything you would need (minus compressors and tanks. I stay away from the tank and valves all combined into one. Those have a high fail rate.

Marc

$800 with height sensors would be a sweeeet deal! totally agree on not running the fully integrated system, especially since i have the tank n compressors already.

youngrodder 07-19-2021 12:44 PM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by 6DoF (Post 8947100)
$800 with height sensors would be a sweeeet deal! totally agree on not running the fully integrated system, especially since i have the tank n compressors already.

It was listed for $850.00. You can find it on the AccuAir owners group page on FB. I was listed yesterday and looks like it is still available.

Marc

Rickysnickers 07-20-2021 09:48 AM

Re: Project: Tow-Rat (Lil' Blue)
 
I'm a visual person. I am looking forward to seeing the plate and how it mounts to the truck. I like the idea of the 4 points. I have a big back window and don't have a lot of room for a 3 point belt. If the plate works out well, you may end up selling some :)

6DoF 07-20-2021 10:11 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by Rickysnickers (Post 8947515)
I'm a visual person. I am looking forward to seeing the plate and how it mounts to the truck. I like the idea of the 4 points. I have a big back window and don't have a lot of room for a 3 point belt. If the plate works out well, you may end up selling some :)

i will gladly sell "car show decorative ribbon tabs" ... but i'm not taking on the liability of a seat belt mount! :lol:

lower50's 07-20-2021 03:54 PM

Re: Project: Tow-Rat (Lil' Blue)
 
What about using 1/4" X 6" plate and making it look good and wrap it around inside the cab fasten it good then if the shoulder belts want to move they have to take the cab with them.
I have been using manual switches for ride height for 5 years now I run at 4" normally I just look out the window to the running board to verify height. I have bag pressure gauges as well but I find the pressure might be different based on the ambient air temp.

6DoF 07-21-2021 07:20 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by lower50's (Post 8947617)
What about using 1/4" X 6" plate and making it look good and wrap it around inside the cab fasten it good then if the shoulder belts want to move they have to take the cab with them.
I have been using manual switches for ride height for 5 years now I run at 4" normally I just look out the window to the running board to verify height. I have bag pressure gauges as well but I find the pressure might be different based on the ambient air temp.

i don't know if i'm picturing what you were, but between that and what Rob said you've given me an idea. we'll wait and see after it's bolted in though and go from there.

i'm SUPER torn on the ride height control honestly. part of me wants the digital hotness for a perfect set-up every time ... while another part says that with a bump start this truck can run n drive with zero electricity of any kind.

except i just installed electric compressors ... ugh ... i need an engine driven compressor!

6DoF 07-21-2021 09:12 PM

Re: Project: Tow-Rat (Lil' Blue)
 
More orphan bolts found their forever home tonight :)

https://i.imgur.com/Gn44FWk.jpg

youngrodder 07-21-2021 09:23 PM

Re: Project: Tow-Rat (Lil' Blue)
 
You running a good water trap for the air ride? I was amazed at how much moisture mine hold when I release the air. I have (2) tanks and one trap per tank.

Marc

6DoF 07-22-2021 08:11 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by youngrodder (Post 8948120)
You running a good water trap for the air ride? I was amazed at how much moisture mine hold when I release the air. I have (2) tanks and one trap per tank.

Marc

ya know, i was planning to put a drain line on the tank i could access easy without getting under it ... but i hadn't thought about a separator. thanks sir!

i also plan to run the air intake for each pump up high under the hood, not just under the truck.

Dieselwrencher 07-22-2021 10:44 AM

Re: Project: Tow-Rat (Lil' Blue)
 
I have been regretting the 3 point set up in my 71 Camaro I went with. On me, the shoulder strap always rubs me and annoys me. I'd much rather have the 5 pt. It feels more secure and comfortable to me. I happen to have a holset air compressor for one of these. :lol:

lower50's 07-22-2021 03:51 PM

Re: Project: Tow-Rat (Lil' Blue)
 
1 Attachment(s)
Quote:

Originally Posted by 6DoF (Post 8948224)
ya know, i was planning to put a drain line on the tank i could access easy without getting under it ... but i hadn't thought about a separator. thanks sir!

i also plan to run the air intake for each pump up high under the hood, not just under the truck.

Just to add to the discussion lol I just put a drain valve on each tank and I don't run a separator, I had a separator on my jeep with a york compressor and found the tank collected all the moisture. For the air filter on my truck I just run the filter screwed to the compressor, if you run to much hose even 3/4" dia on the intake side it creates vacuum on the suction and the compressors will get hotter. In my trucks system I don't have much moisture and the filters stay relatively clean, and I drive it in all kinds of different weather. Just FYI
The compressors are mounted just inboard of the tanks.
Attachment 2115816

youngrodder 07-22-2021 04:12 PM

Re: Project: Tow-Rat (Lil' Blue)
 
I will add that my separators are the lowest point of the system. Lower than the tanks, so that is probably why they collect so much water. My old set up did not collect water like that. I bet that has something to do with it.

Marc

6DoF 07-27-2021 07:21 AM

Re: Project: Tow-Rat (Lil' Blue)
 
wasn't a quick shift, but got everything tipped over for finishing efforts. why weld upside down if ya don't have too?!?! lots of welding still on the chassis, and the floor gets sealed good.

https://i.imgur.com/ap4O64s.jpg

youngrodder 07-27-2021 08:54 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Cant wait to see this one go back together....

Marc

Dieselwrencher 07-31-2021 06:10 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Looking great! I don't blame you for trying to minimize welding over head. You always get burnt up one way or another doing it.

6DoF 08-02-2021 12:19 PM

Re: Project: Tow-Rat (Lil' Blue)
 
burnt is one thing ... but with the feet of weld i had to lay this was way more ergonomic and i could get cleaner looking welds.

i tell ya what though, i had a few bad days of welding. some of these are not pretty. solid n not going anywhere, but not smooth.

6DoF 08-02-2021 12:32 PM

Re: Project: Tow-Rat (Lil' Blue)
 
finally got my clutch in! the box also included a clutch arm, throughout bearing, and little plastic alignment tool for a total of 116.xx LBS. every time i spin this turd to 4000RPM, i'm also spinning up over 100lbs of steel and ceramic!

:jdp:

13" dual disk, ceramic button clutch rated at 650hp / 1300ft-lbs

1) i really hope it's balanced! 2) the mid-plate is as thick as a normal flywheel!

seriously though, that'll be a significant HP suck if i ever play on the strip. but at least it should hold the torques.

https://i.imgur.com/wJSYXJR.jpg

GreasyLikeaBurger 08-03-2021 11:41 PM

Re: Project: Tow-Rat (Lil' Blue)
 
Did the delivery guy toss it on its side at your door? My delivery guy always looks pissed if it the box weighs more than 20lbs. If its over 20, its almost always got a hole in the side, like they were pissed they had to unload it and walk the 30 feet to my gate. And just drop it on the ground.

Dieselwrencher 08-04-2021 07:30 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Very nice! Try not to slip it a lot since you went full ceramic. She'll get jumpy and jar your teeth out of your head. :lol: My only complaint about a dual disc is they actually slow down the shifting process if you are trying to drive fast, but yet necessary if you have the powa.

burnin oil 08-04-2021 10:44 AM

Re: Project: Tow-Rat (Lil' Blue)
 
I love the progress on your project.. I keep coming back and checking for updates every day or two.


It's funny to me that they can't build a clutch to hold torque in a gasser and go straight to the dual disc. On the diesel side of the house I have a 12v cummins pushing 750hp running a single that never slipped and shifted like butter. The work truck does have a dual disc but hauls alot of heavy loads. It shifts way slower but also never slips.. Both are G56 transmissions. Nothing but good things to day about South Bend Clutches.

6DoF 08-04-2021 03:07 PM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by GreasyLikeaBurger (Post 8953418)
Did the delivery guy toss it on its side at your door? My delivery guy always looks pissed if it the box weighs more than 20lbs. If its over 20, its almost always got a hole in the side, like they were pissed they had to unload it and walk the 30 feet to my gate. And just drop it on the ground.

actually, the box was in the best shape of most any recent shippment! but my usual UPS guy was here yesterday and said his fill-in for a few days was really complaining about having to show up with it 2x :lol:

Quote:

Originally Posted by Dieselwrencher (Post 8953463)
Very nice! Try not to slip it a lot since you went full ceramic. She'll get jumpy and jar your teeth out of your head. :lol: My only complaint about a dual disc is they actually slow down the shifting process if you are trying to drive fast, but yet necessary if you have the powa.

oh man, i love my ceramic pucks! both the crawler and the street-rod jeep's have em. on the street it's 2 options, super easy or lots of go, that middle range is where it's annoying. offroad though i can keep the R's way down and slip here and there for control without generating anywhere near the heat i used to with a standard clutch.

Quote:

Originally Posted by burnin oil (Post 8953525)
I love the progress on your project.. I keep coming back and checking for updates every day or two.


It's funny to me that they can't build a clutch to hold torque in a gasser and go straight to the dual disc. On the diesel side of the house I have a 12v cummins pushing 750hp running a single that never slipped and shifted like butter. The work truck does have a dual disc but hauls alot of heavy loads. It shifts way slower but also never slips.. Both are G56 transmissions. Nothing but good things to day about South Bend Clutches.

this is a Valair clutch, from my research everyone said just buy the SB or Valair that was on sale that day. i found a deal on this and jumped.

sorry for the slow progress, i've just been out there welding! weld, let it all cool, weld more, let it all cool again, etc. i'm really jumping around trying to keep from warping anything!

6DoF 08-05-2021 09:18 AM

Re: Project: Tow-Rat (Lil' Blue)
 
so i've just been chugging along with the welding, trying to be patient about welding a little and moving around the letting things cool. weld one side of the fish plate, do another side on another plate, etc. also took me a bit to find the pattern/settings that made the prettier welds on these. never did find something i really liked on the fish plate holes. BUT, aint nothing going nowhere! i still need to take a grinder to the top edge of all the plates and soften that before i snag/cut hoses or wires on em.

https://i.imgur.com/K6eiCZO.jpg

dsraven 08-05-2021 10:59 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Kinda tought to tell from the pic but it looks like your welds are possibly undercutting a bit. You could try less current which can help the edges of the puddle not melt the base metal around the puddle as much so that area doesnt drain into the puddle and leave a void where it came from. Also, check the arc length or try a shorter arc length to control the heat around the puddle better. do you use some sort of a V or a C pattern with the electrode as you move the puddle around?

dsraven 08-05-2021 11:09 AM

Re: Project: Tow-Rat (Lil' Blue)
 
An undercut weld happens when you are welding to slow, welding too hot, or welding at the wrong angle. This will cause a cavity to form either below or above the weld and result in a weaker weld. To fix this turn down your amperage, speed up your weld, and turn up your wire speed to help fill in the weld.

6DoF 08-05-2021 11:22 AM

Re: Project: Tow-Rat (Lil' Blue)
 
so that plate might have 4 different setting trials on it, lol

it's crazy how much the fish plates and frame rail acted like 2 different thickness, way more than i expected. both are 1/4", but from room temp the frame rail ends up being a HUGE thermal mass to heat.

i started out trying different sittings around my usual V and C, but never got a look i liked. the pattern i landed on was actually a down n out, followed by a re-trace. so basically i come straight down the one plate, then straight out the other, letting the puddle form in the middle. then i would sweep back up over the puddle quickly to ad a touch more fill while also giving a 2nd pass to flow the puddle n smooth/blend it more.

the hole fills were the same settings, but i guess i should have turned it down or given time between stitches in each.

daddyjeep 08-06-2021 09:01 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by 6DoF (Post 8953973)
so that plate might have 4 different setting trials on it, lol

it's crazy how much the fish plates and frame rail acted like 2 different thickness, way more than i expected. both are 1/4", but from room temp the frame rail ends up being a HUGE thermal mass to heat.

i started out trying different sittings around my usual V and C, but never got a look i liked. the pattern i landed on was actually a down n out, followed by a re-trace. so basically i come straight down the one plate, then straight out the other, letting the puddle form in the middle. then i would sweep back up over the puddle quickly to ad a touch more fill while also giving a 2nd pass to flow the puddle n smooth/blend it more.

the hole fills were the same settings, but i guess i should have turned it down or given time between stitches in each.

I have seen prettier welds, but I think they still qualify for the "that aint goin anywhere" comment.

6DoF 08-09-2021 07:38 AM

Re: Project: Tow-Rat (Lil' Blue)
 
over the last few lbs of wire i can't decide if i got prettier welds or worse :lol: i'm now near 15lbs of wire into this truck!

because things aren't allowed to move unless i say so, i went ahead and added little gussets to the bag mounts, and also in the steering box mount. un-sprung weight? whatever :lol:

the chassis is fully welded now though, as is the cab floor. LOTS of clean-up to do softening edges, and i still need to add my zip-tie tabs on everything. then i can start paint prep.

https://i.imgur.com/KCmgp52.jpg
https://i.imgur.com/kwKIh3u.jpg
https://i.imgur.com/aMmcsp6.jpg

6DoF 08-10-2021 08:09 AM

Re: Project: Tow-Rat (Lil' Blue)
 
i know it doesn't look like much of a change, but taking a flap wheel around all the edges made a HUGE difference. i normally don't go over things after welding. you can now wipe your hand around over the whole thing and no snags, scratches, or roughness. should be nicer for wires n hoses, and way nicer to work on in the future.

also smoothed out the welds on the sleeved holes, was satisfying.

https://i.imgur.com/UDBai84.jpg
https://i.imgur.com/Cq2aYxn.jpg

Jason 56 08-10-2021 08:41 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Wow, I just found your build! You are an amazing designer and fabricator. I really like the direction it headed. Keep up the progress. I’ll be following.

lower50's 08-10-2021 08:31 PM

Re: Project: Tow-Rat (Lil' Blue)
 
It's amazing how much a little bit of sanding makes things look way better. Welds look good to me, if something is going to brake off I think you have bigger problems.

Dieselwrencher 08-11-2021 10:31 AM

Re: Project: Tow-Rat (Lil' Blue)
 
That's looking really nice. I've experienced the same as you. I have days when I pick up the welder I just have to put it down. But I have other days that every weld just comes out beautiful. It's unexplainable. I think yours look just fine. Keep at it!

6DoF 08-11-2021 10:42 AM

Re: Project: Tow-Rat (Lil' Blue)
 
Quote:

Originally Posted by Dieselwrencher (Post 8956428)
That's looking really nice. I've experienced the same as you. I have days when I pick up the welder I just have to put it down. But I have other days that every weld just comes out beautiful. It's unexplainable. I think yours look just fine. Keep at it!

there are some days you just have to keep chanting "think sexy" in your head while laying beads :lol:

6DoF 09-07-2021 08:56 AM

Re: Project: Tow-Rat (Lil' Blue)
 
and back to progress! vacation prep, vacation, more family events, lots of life happening this last month. oh yeah and my TJ whipped another set of gears in the rear axle, so had to rebuild that too. :facepalm:

so i went thru and wire brushed, then wire wheeled everything that's getting the heat-shield undercoating, then prepped with rust-prep. what a mess, but it's done. also did the core support while i was at it so it can get painted. that'll be a key to getting thins running.

https://i.imgur.com/Di3fmrY.jpg
https://i.imgur.com/Bqc9zJn.jpg
https://i.imgur.com/C8k2wXY.jpg


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