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#926 |
Registered User
Join Date: Dec 2013
Location: Northern, MT
Posts: 569
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Re: 75 Dually build
I ran mine with a 4.10 gear ratio for a few years and eventually went to 3.55s. Even in Overdrive and going down a big hill I couldn't get mine over 65 MPH. Keep up the good work on this and the cab swap project.
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1987 GMC R2500 SC 454 T400 1988 Chevy R30 CC DRW 12 valve Cummins NV4500 GearVendors |
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#927 | |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Quote:
The cab swap project is coming along nicely, I've got a much nicer weekend weather wise to get a couple things done on it too. Should have some more updates on that soon. |
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#928 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Last night my best friend brought by some yellow grease from work, and this morning I did the yellow grease thingy on the gears. Sent the pictures you see below to a very good friend of mine in Idaho who is an expert on gears, and he said leave it alone.
So after the good news I ordered all the bearings, seals, etc... to get this truck back on the road. They should be in by mid week, and I hope to be able to have it back out by next weekend. It is great to have good friends who help out! ![]() Stay tuned! |
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#929 |
Registered User
Join Date: Aug 2012
Location: Clovis, NM
Posts: 2,705
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Re: 75 Dually build
Is this rearend project delaying your 68 gmc project? LST is fastly approaching!
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2018 Audi S5- wife's ride 1980 Chevy Scottsdale http://67-72chevytrucks.com/vboard/s...d.php?t=543511 1981 Chevy Silverado- in pieces 1964 Chevy c10 2017 Jeep Wrangler JKU |
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#930 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Yes, yes it is! However I got a bad cold over Christmas and just got rid of it so my time line is so out of wack it is not even funny. I would like to take the 68, but won't worry if it does not go this year. The Dually has to go no matter what.
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#931 |
Registered User
Join Date: Aug 2012
Location: Clovis, NM
Posts: 2,705
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Re: 75 Dually build
Ahhhh ok. I thought the 68 was your main priority for LST. Either way I hope you are able to take something. I’m trying to scramble and see if I can put together a 61 Apache dually in time for c10sinthepark
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2018 Audi S5- wife's ride 1980 Chevy Scottsdale http://67-72chevytrucks.com/vboard/s...d.php?t=543511 1981 Chevy Silverado- in pieces 1964 Chevy c10 2017 Jeep Wrangler JKU |
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#932 | |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Quote:
Now I'm not writing off the 68, but I won't get all torqued up if it does not happen. In fact I have some things I found out this weekend that is really going to make that ride sit a bit lower, and some items that will help speed up the build process. For that check out that build here: http://67-72chevytrucks.com/vboard/s...d.php?t=747558 Also I know I want it completed for C10's in the park too. We need to get a bunch of guys from this part of the world and do a really cool road trip to that event. I bet it would be cool to make that happen! Now about your 61 Apache... That would be a super cool ride for C10's in the park! |
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#933 |
Registered User
Join Date: Aug 2012
Location: Clovis, NM
Posts: 2,705
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Re: 75 Dually build
Yeah, just so much to figure out and I still have to get a title for it first.
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2018 Audi S5- wife's ride 1980 Chevy Scottsdale http://67-72chevytrucks.com/vboard/s...d.php?t=543511 1981 Chevy Silverado- in pieces 1964 Chevy c10 2017 Jeep Wrangler JKU |
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#934 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 75 Dually build
How tall are your tires currently? I think you will find out that 4.10s will suck with the cummins even with OD unless your tires are 33" tall.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#935 | |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Quote:
We shall see... |
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#936 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
I got the diff and the pinion out tonight. Now it is time to get the new bearings pressed on and get this truck back on the road. I have a list of items I want done before we head off to LST, so it is time to get busy and check them all off before we head out.
42 days 11 hours 43 minutes and 28 seconds! Time to get busy! Stay tuned! |
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#937 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
So just a quick note. We have been working on the truck! Ok in between nasty head colds (the flu has been running around Lubbock like wild fire!), my job (Imagine that!), and life in general. I have had a bunch of good friends helping me get a ton of small items completed.
So far we had a couple of starts and stops with the diff update. Some bearings were wrong in the kit I got, but finally we got it all figured out and got them all installed today. I should have the diff and the rear end buttoned up, along with the watts link reinstalled by the end of the week. Crossing my fingers! Then we should be on to finishing up the interior. I am trying to update the seats, a center console, and finish the stereo system. A lot of small items to get checked off the list before we leave for LST. So much to do and so little time, typical! Stay tuned! ![]() |
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#938 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
The diff and the pinion are in!!! Now to rest my sore back... Tomorrow I will run the patterns on the engagement, and then button it all up.
Gotta get the watts link mounted back up too. Going to make it removable this time. Ah well live and learn! Stay tuned! |
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#939 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
So tonight I worked on getting the watts link reinstalled. Nothing very special I just made mounting tabs out of 1/4" plate, welded them to the rear end housing and then drilled a 1/2" hole through the tabs and the link arm. Shot some black paint on the metal parts and bolted everything back up. Sounds simple but it was actually a lot of work to get everything perfect and to line up correctly. Now if I ever have any issues with the rear end again the watts link can be unbolted and moved out of the way for servicing. Yeah, yeah, yeah I know I should have done this in the first place! Ah well live and learn...
![]() My friend and I went during lunch today to the upholstery shop and picked up the vinyl material for the door speaker pods and the center console we are building. I did take a pic of the seats that I'm installing so we could match the material. These are late 80's Chevy buckets and a rear 60/40 split. I have always liked these seats, they are very comfortable, and I think they look great. I can't wait to get them installed and moving towards getting this truck ready for LST. Stay tuned! ![]() |
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#940 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
So I took the truck out for a quick spin and the results were excellent. Now to concentrate on the interior make over. My friend is getting the new lower door panels ready for the 6.75 inch speakers. This weekend I will get on the construction of the new center console.
Getting closer to being ready. Gonna be fun! Stay tuned! Last edited by 75Dually; 02-07-2018 at 01:15 AM. |
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#941 |
Registered User
Join Date: Aug 2012
Location: Clovis, NM
Posts: 2,705
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Re: 75 Dually build
Sweeeeeet!
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2018 Audi S5- wife's ride 1980 Chevy Scottsdale http://67-72chevytrucks.com/vboard/s...d.php?t=543511 1981 Chevy Silverado- in pieces 1964 Chevy c10 2017 Jeep Wrangler JKU |
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#942 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
My last mechanical with the truck was finished tonight! YES! Now on to the interior...
I have had a drive line vibration at around 70 MPH for quite some time. Because this truck has a 4:10 ring I don't like to rev this 454 too much and possibly hurt it. So I try to keep the top speed down a bit. The pic below is an older pic from when I was doing the 4 link, but you can see the angle gauge that I have used, and it is really accurate. What I did was investigate all the drive line angles as they sat right now, and then I did some research on what the correct angles should be for the entire drive line. The hyperlink below is from the Spicer webpage, it is really good to use if you are doing any suspension changes. You click on how many driveshafts you have (mine obviously has 2) and then you enter the measured angles and it gives you the working angles for each u-joint. For those of you who have never set your drive line angles there are some really good YouTube videos that explain how all that works. Basically you have the driveshaft angle and then the angle the u-joint is positioned at. The relationship between these two is very important to keep the u-joints happy and functioning properly, and the relationship of the opposing u-joint and 2nd driveshaft (if you have a 2 piece driveshaft) need to be in harmony. In the end what you need is to make sure the working angles between the shafts and the u-joints are very close to the same angle. That way as one u-joint moves it's opposing u-joint cancels out the vibration and movement of the other u-joint. The closer you get the working angles to match the less vibration you will have. I'm so happy the way I set up the 4 link. It gives me so much flexibility to move the pinion angle to whatever is required. What I found out was I only had to move the pinion angle about 0.6 degrees up. This did not take all the vibration out, but a lot of it was dealt with. What needs to happen next if I decide to take this any further is I need to move the center carrier bearing up to lessen the driveshaft angles. That would close down the working angle in the center and thus make the whole system work a lot better. However for now I will take this as a win and come back to it in the future. http://spicerparts.com/calculators/d...gle-calculator We are in the last 2 weeks of the LST crunch! Interior is next... Stay tuned! Last edited by 75Dually; 02-09-2018 at 10:47 PM. |
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#943 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,966
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Re: 75 Dually build
6° change??
What was your pinion set at?
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#944 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
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#945 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Glamour shot! It needed a bath soooo bad! We have had a ton of dust storms lately, and it got covered in dust and dirt while getting repaired.
But I took it in today to get the annual inspection, and it drives so nice now. Can't wait to cruise it to LST! Oh yeah that is going to be in 13 days 11 hours and 9 seconds, but who's counting... Stay tuned! ![]() |
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#946 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
It is so on! Today after church I took out the old seats and started to trial fit the new seats. I started with the 60/40 split pair. Um... They are going to take a bunch of work. I'm hoping that the front seats will go in much easier. What I have done so far is just bolt down one corner and see what it is going to take to get them to fit. Lots as it turns out...
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#947 |
I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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Re: 75 Dually build
Dude, you are running out of time...
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Karl ![]() 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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#948 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 75 Dually build
Nice to hear you're getting the vibration removed in it. To add to the operating angles, if you don't have enough operating angle on the u joints, they can prematurely fail as well. I've had that same battle with newer seat mounts. They are always to high it seems. Making new frames/mounts is what I have done too. Definitely faster. Good luck getting them done in time!
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#949 | |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
Yeah I know, I know... But we will be there this year! I look forward to seeing that wing!! Remember I owe you dinner.
Quote:
The seats are just about done! I will have them finished tonight, and hopefully painted and ready to be finally installed for the last time. Wait until you see the center console, and the speaker door pods we are making. They are going to be really nice! |
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#950 |
Registered User
Join Date: Nov 2013
Location: Lubbock, TX
Posts: 769
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Re: 75 Dually build
I have been in the shop after work every night until late trying to get everything buttoned up. The rear seats have been a lot of work to get right. The pic below shows them in their final position. There is very little left of the original frames. To get these seats to fit the frames had to be cut, sliced, and almost diced to get them to fit and work. The cool thing is that they have the same function as the original frames, just changed to fit these floor pans.
The last thing I did tonight was paint the rear frames black to match the carpet and not make them stand out so much. I bet a ton of people will look at this and think "yeah so you put stock seats back in it, so what?" Never knowing just how much work it was to get them to look like they belonged from the factory. The front seats are all ready to go, they just need to be bolted down in their new homes. I have to wait until the new center console is finished and installed before I can check that off my list. BTW the new center console is off the charts! LST - 7 days, 7 hours, 51 minutes! But again who is counting.... Stay tuned! ![]() |
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air bags, alcoas, chevy, dually, lowered |
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