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Old 07-04-2023, 03:03 PM   #1
Bus Nut
 
Join Date: Oct 2015
Posts: 340
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
Best transmission for 93 gmc vandura?

I haven't been around much lately, but a couple years ago we got our second bus just to use as is. The transmission is shot now and I'm looking to get it replaced.

It has the 4L80e, which is widely available but not necessarily set up how I'll need it. I was hoping someone here will be able to help me figure out what exactly I need and the best value as far as available used and remans go.

The bus is a 1993 GMC Vandura 3500 HD with the 6.2 diesel.

On car part there are many different variations listed and I don't know if this affects the transmission or not. I also don't know what the variations are and can't figure it out based on VIN.

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Old 07-04-2023, 10:01 PM   #2
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Join Date: Mar 2022
Location: CSRA Georgia
Posts: 393
Year: 1994
Coachwork: Blue Bird
Chassis: Ford B-700
Engine: 12V 5.9
In order of cost:

Replace the 4L80 and deal with it. If you have a friend with a commercial account, they can get a much better deal for you. I think I paid $1,800 for a 4L60E reman, no core required from Advanced.

Sell the running 6.2 Get a complete 6.0/6L80 from a work van and LS swap it. Idk the market for running 6.2s but they haven't made any in 30 years so you might do well selling it.

Swap a 6L80 behind the 6.2
https://www.psiconversion.com/produc.../TCM-2650.html

https://quadstartuning.com/products/...conversion-kit

https://www.gmfullsize.com/threads/6...diesel.329716/

1993 is pre-OBD2 so a later-model transmission may bolt up but needs standalone controllers to function. IMHO LS swap is the way to go since the 6.2 doesn't make much power and the LS is the universal swap choice.

But it all depends on what you want out of the rig, what you're willing to spend and how much downtime you can tolerate.
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