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-   -   1972 Chevy 4wd Longhorn Project: Never Ending Changes (https://67-72chevytrucks.com/vboard/showthread.php?t=310493)

jbclassix 03-07-2013 11:51 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by ryanroo (Post 5933896)
They are called zero rate add-a-leaf. they can recenter the axle or not. they are called add a leaves because they become a part of the springpack when you bolt them on with the center pin but do nothing to change the springrate like a normal add-a-leaf. the 2 hole three hole is the choices for moving the axle forward or back
Ryan

Ok. Hence the countersunk holes. His just have multiple positions, right?
Posted via Mobile Device

Dieselwrencher 03-07-2013 11:56 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by jbclassix (Post 5933939)
Ok. Hence the countersunk holes. His just have multiple positions, right?
Posted via Mobile Device

It allows you to move the axle 1" or 1.5". That's why there are 3 holes. You'll end up using 2 holes when you're done. I'm not too keen on the grade 5 bolts they want to use as the new center pin.

jbclassix 03-08-2013 01:34 AM

Re: Finally starting my Longhorn 4x4 conversion
 
Don't cheap out and use the low grade hardware. Check out this problem we ran into at work. Link-a-ma-jig

Mattman2010 03-08-2013 01:46 AM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Dieselwrencher (Post 5933947)
It allows you to move the axle 1" or 1.5". That's why there are 3 holes. You'll end up using 2 holes when you're done. I'm not too keen on the grade 5 bolts they want to use as the new center pin.

Use grade 2, it will make things far more interesting when you put the foot to the floor! :D

mknittle 03-08-2013 04:00 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Dieselwrencher (Post 5933172)
Yes I have. They are still trying to get the braking power side of it to work better. They sound cool, but I guess don't brake well yet.

Could be not enough manifold pressure. that was one of the problems the cat 3406 had. Swapping a holset turbo helped.

mknittle 03-08-2013 04:17 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by watahyahknow (Post 5933190)
i think a retarder / magnetbrake would work better ,
http://i00.i.aliimg.com/photo/v0/206...rake_parts.jpg
i have seen motorbrake stuff but i think it works by smothering the intake air while cutting the injectors the vacuum makes the engine resist reving when running downhill in gear , prolly whont work with turbo's as they get hurt when you cut the air intoo them ... sucks the oil right trough the seals

thosr things are too heavy. all class 8 truck engines can be fitted hith engine brakes and do not work on vacuum thy work on compression and the more manifold pressure the better the braking.We are getting around 30 PSI on a Cummins big cam 2 on the jake.

mknittle 03-08-2013 05:34 PM

Re: Finally starting my Longhorn 4x4 conversion
 
1 Attachment(s)
Ryan, This is off topic but thought you might like to see this. it is still in the mock up stage on the grill shell. the engine needs to be moved back. and and and....:lol:

Dieselwrencher 03-08-2013 09:19 PM

Re: Finally starting my Longhorn 4x4 conversion
 
And and and, sell it to me! :lol: Nice progress on the ol girl!

mknittle 03-08-2013 09:27 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Dieselwrencher (Post 5935317)
And and and, sell it to me! :lol: Nice progress on the ol girl!

yeah, he is moving right along! the problem is the farther he gets the more my 52 gets buryed :lol:

truckdude239 03-11-2013 11:20 AM

Re: Finally starting my Longhorn 4x4 conversion
 
man i just took 4 hours to read this thing and your not done with it!!

1985-GMC 03-11-2013 03:10 PM

Re: Finally starting my Longhorn 4x4 conversion
 
I think its taken him more than 4 hours to get this far, so...
Posted via Mobile Device

Dieselwrencher 03-11-2013 08:42 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by truckdude239 (Post 5939977)
man i just took 4 hours to read this thing and your not done with it!!

Well sorry man. :uhmk:

Quote:

Originally Posted by 1985-GMC (Post 5940359)
I think its taken him more than 4 hours to get this far, so...
Posted via Mobile Device

Uh, yeah, you're totally right. :lol: It'd get done if I quit improving on it every time I work on it. :chevy:

Mattman2010 03-11-2013 08:56 PM

Re: Finally starting my Longhorn 4x4 conversion
 
I would use that word "improving" very loosely if I where you :lol:

Dieselwrencher 03-11-2013 08:59 PM

Re: Finally starting my Longhorn 4x4 conversion
 
I got some time to work on it this weekend. I got the zero rates installed, and IDK if I'm exactly am happy with it. Before I started the wheel base was 132". After it's 133.5". So it definitely moved. I just don't think it's enough in the front yet. But I only moved it 1/2". I still have the 1 1/2" hole to try. I also stripped the other hole in my diff housing on the RH leaf spring retaining plate. So I'll have to heli-coil them. I had the inserts but no tap. I didn't realize the taps for a 1/2" heli-coil was an odd size. Go figure. I got the kit today though, so I'm good there. Any how, here's some progress pics.

http://i181.photobucket.com/albums/x...310_123150.jpg
http://i181.photobucket.com/albums/x...310_172058.jpg
http://i181.photobucket.com/albums/x...310_163513.jpg
http://i181.photobucket.com/albums/x...310_163525.jpg

I cleaned the bed out, removed the rear bumper, and slid the bed back. The bed was way too close to the cab for my taste.

http://i181.photobucket.com/albums/x...310_172047.jpg
http://i181.photobucket.com/albums/x...310_172116.jpg
http://i181.photobucket.com/albums/x...310_172040.jpg

Next I removed the bed so I can start on the GN hitch, frame boxing, and fuel tank swap. (Thanks for the idea Matty) :lol:

http://i181.photobucket.com/albums/x...310_174943.jpg

Almost had a casualty.............

http://i181.photobucket.com/albums/x...310_180832.jpg

No bed.

http://i181.photobucket.com/albums/x...310_174955.jpg

Tail pipe won't work when my hitch is finished. I'm planning on running straight pipe now.

http://i181.photobucket.com/albums/x...310_175020.jpg

Starting on the GN hitch. I'll have a B&W inbetween the 4x4 and 2x4 cross members.

http://i181.photobucket.com/albums/x...311_121446.jpg

Shoot, just this weekend and this morning, I bet I spent 10hrs working on this thing. :waah:

jbclassix 03-11-2013 10:09 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Exhaust pipe or Ia metro subway!

I agree, I think the axle needs to move forward still.

brothers69c-10 03-11-2013 10:10 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Looking good buddy. Hope to see this one at goodguys this year.

ryanroo 03-11-2013 10:25 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Looking good! you know i think you are spinning you wheels adjusting that rear axle placement. you know it wont matter when you step up to the plate and link/bag that bad dog...

that gooseneck plan looks good, wish ida thought of that :)

Ryan

Mattman2010 03-11-2013 11:03 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Dieselwrencher (Post 5941050)
Next I removed the bed so I can start on the GN hitch, frame boxing, and fuel tank swap. (Thanks for the idea Matty) :lol:

Quote:

Originally Posted by ryanroo (Post 5941317)
that gooseneck plan looks good, wish ida thought of that :)

Ryan

Ryanroo was the one with the idea. I stole the idea from him for my gooseneck hitch. Hell if you read his thread he said he wished he would have spaced his so the b&w would set right on top :lol:

Dieselwrencher 03-12-2013 04:04 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Mattman2010 (Post 5941433)
Ryanroo was the one with the idea. I stole the idea from him for my gooseneck hitch. Hell if you read his thread he said he wished he would have spaced his so the b&w would set right on top :lol:

I was talking about the burb tank sonny boy. I already had the B&W to do this with. :waah:

Dieselwrencher 03-12-2013 04:05 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by ryanroo (Post 5941317)
Looking good! you know i think you are spinning you wheels adjusting that rear axle placement. you know it wont matter when you step up to the plate and link/bag that bad dog...

that gooseneck plan looks good, wish ida thought of that :)

Ryan

Yeah, you know it. :lol: Bye Bye leaves......................

mcbassin 03-12-2013 04:09 PM

Re: Finally starting my Longhorn 4x4 conversion
 
very nice progress Ryan.

Mattman2010 03-12-2013 04:58 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Dieselwrencher (Post 5942740)
I was talking about the burb tank sonny boy. I already had the B&W to do this with. :waah:

Makes sense now....
Posted via Mobile Device

ryanroo 03-12-2013 08:57 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by Dieselwrencher (Post 5942741)
Yeah, you know it. :lol: Bye Bye leaves......................

i'm thinkin so.

ryanroo 03-12-2013 11:21 PM

Re: Finally starting my Longhorn 4x4 conversion
 
Mr. Wrencher has a pile of steel hiding in CO...

http://i94.photobucket.com/albums/l8...psb55fc40a.jpg

jbclassix 03-13-2013 01:48 AM

Re: Finally starting my Longhorn 4x4 conversion
 
Quote:

Originally Posted by ryanroo (Post 5943696)
Mr. Wrencher has a pile of steel hiding in CO...

http://i94.photobucket.com/albums/l8...psb55fc40a.jpg

No backing out now!!


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