88 crew cab 4x4 single wheel conversion with 02 Cummins/allison auto

[Dieselwrencher]

Great project! You can use a GM computer and wiring harness to use the Allison 6 speed. There's a guy in Mexico Mo that is doing one right now in a 78 Ford with a Perkins diesel. Dale is a great guy and will help you out with info if you'd want. I can get you his phone number.

[yjheep]

Originally Posted by Dieselwrencher

Great project! You can use a GM computer and wiring harness to use the Allison 6 speed. There's a guy in Mexico Mo that is doing one right now in a 78 Ford with a Perkins diesel. Dale is a great guy and will help you out with info if you'd want. I can get you his phone number.

I would love that. Mexico mo is only about 3 hours away
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[yousesteers]

Mexico is only about 20 minutes from me if you get up that way. I like to shift gears but need another OD in my 84 with Cummins/NV4500/4:56 gears

[yjheep]

Originally Posted by yousesteers

Mexico is only about 20 minutes from me if you get up that way. I like to shift gears but need another OD in my 84 with Cummins/NV4500/4:56 gears

Me too, I like to lug em and roll coal too but, you do need that second OD with 456's looked into the gear vendors but there over priced and would be a week link in my drivetrain
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[1985-GMC]

Nice build!

[nekkidhillbilly]

A built 80e will hold a pretty mean cummins actually not really enough overdrive though. You can do the suncoast 6 speed conversion to the 5 speed. It ain't cheap. What about a newer dodge trans I've not fooled with one but there 6 speed and hand in hand in strength as the Allison. Since I'm a dmax owner I'm not as keen on dodges.
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[nekkidhillbilly]

80e or the 47 with a gear vendors is another option cost is about same as Allison with stand alone though.
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[nekkidhillbilly]

As for using tcm from the gm truck idk how it would work without pcm from a gm and bcm to. It requires input from the pcm to work and the bcm to control like tow haul and all.
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[yjheep]

Originally Posted by nekkidhillbilly

A built 80e will hold a pretty mean cummins actually not really enough overdrive though. You can do the suncoast 6 speed conversion to the 5 speed. It ain't cheap. What about a newer dodge trans I've not fooled with one but there 6 speed and hand in hand in strength as the Allison. Since I'm a dmax owner I'm not as keen on dodges.
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A built 4l80e will hold a stock Cummins, not even a mild built Cummins. We got about 4 months out of a full race monster 4l80e and as I have stated many times I need the double over drive.
As for the sun coast 6 speed kit, it still requires the six speed controller, your better of just starting with a newer 6 speed its cheaper.
The new 6 speed dodge is too new for me to mess with because of lack aftermarket support at this time, also it requires a standalone

Originally Posted by nekkidhillbilly

80e or the 47 with a gear vendors is another option cost is about same as Allison with stand alone though.
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Also I discussed the Gear vendors unit a couple of posts ago, it is overpriced and a weak link in my drivetrain. I am running large diameter and thick wall tubing with 1410 yokes all around since my goal is to break the 1,500 foot pounds of torque mark.

Originally Posted by nekkidhillbilly

As for using tcm from the gm truck idk how it would work without pcm from a gm and bcm to. It requires input from the pcm to work and the bcm to control like tow haul and all.
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Fleece as well as the guy in mexico Mo. I would assume is removing that part of the programing from the TCM, and it is only getting its incoming information from the speedo and TPS.

Please read ALL of my posts and do not overlap topics I have already covered, I would like to keep my build thread exactly that, and not a discussion forum. Thanks.

[Dieselwrencher]

I was going to add some info about the GV unit, but you already have your mind made about them............. Carry on. Good luck keeping that 545 in there with much power. I've seen 353 non turbo detroits kill them with ease. PM me for Dale's number when you're ready.

[yjheep]

Originally Posted by Dieselwrencher

I was going to add some info about the GV unit, but you already have your mind made about them............. Carry on. Good luck keeping that 545 in there with much power. I've seen 353 non turbo detroits kill them with ease. PM me for Dale's number when you're ready.

It won't last, I do know that. it's going to stay at the 190hp stock till the 6 speed is doable. Also know my top speed is going to be around 60mph with the pos 545.
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[nekkidhillbilly]

Sorry just trying to help
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[yjheep]

got my tires and wheels in today.



I’m happy with the lift and tires size, looks just about right. after i get the Cummins and Allison it its going to settle a couple inches or so, but i still need to install a 2 inch body lift to clear my sae bell housing so it should sit about where it is now.

[TheManInBlack]

Please tell me you're keeping the air horns, visor, cab lights, and if there is a god the awesome striped paint!!

[yjheep]

Originally Posted by TheManInBlack

Please tell me you're keeping the air horns, visor, cab lights, and if there is a god the awesome striped paint!!

I wish I was keeping the paint! I had to get a different bed to go single wheel. So that's too much custom work and they said with no paint codes there is no way they could match the 4 colors of brown in the sripes. It's going to be hugger orange with white down the center. But everything else is staying
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[Mattman2010]

Looking good man, I cant wait to get mine up in the air with a cummins dropped in it!

[Dieselholic92]

Can't wait to see the finished product!

[yjheep]

Thanks guys, I can't wait myself. I'm looking to have it done before the end of June. Should be plenty doable.

Mattman, did you get tires yet? I know your also working on a budget. These tires are fantastic and much much cheaper than youl find any 37". baja's are also one of the best tires out there. if your interested in tires this size let me know. I paid $595 for 4 that are around 95% tread
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[yjheep]

new 1410 yokes. If your looking for yokes, you should seriously consider the Yukon yokes. there a strap style but the yoke covers more than half of the joint and the strap bears no load. also the bolts are twice as long with the threaded portion down into the meat of the yoke.



dana spicer 1410 strap in the back and bolt on the left, yukon strap in the front and bolt on the right.

[madcow75]

Wow what a difference in comparison

[wyattglock]

Nice truck! To bad you cant keep the stock paint, don't see many like yours. I am sure the final product will look pretty killer though.

[yjheep]

Originally Posted by wyattglock

Nice truck! To bad you cant keep the stock paint, don't see many like yours. I am sure the final product will look pretty killer though.

Thanks, I hope so. My wife is very happy tho, she hates the brown stripes and calls it a grandpa truck lol
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[legendman]

Any updates? Gonna be a sick ride when it's done

[yjheep]

No, I have tinkered around with my rear spring hangers some. Between my new job and the 100 degree temps we have been having it's been hard to mess with it, look for some soon looks likes it's going to be cooling down some this week.

Thanks for your intrest and encuragement !
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[legendman]

Originally Posted by yjheep

No, I have tinkered around with my rear spring hangers some. Between my new job and the 100 degree temps we have been having it's been hard to mess with it, look for some soon looks likes it's going to be cooling down some this week.

Thanks for your intrest and encuragement !
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Hear ya on the heat, kills all my motivation, should be cooler this week.
Gotta get some work done on my projects.