1991 6.2 to 1984 350 diesel swap

[matneyr]

Ladies and Gents:

I'm preparing to swap the tired old 350 out of my suburban for a new (<3,000 miles) 6.2 diesel. I have a complete 2 wheel drive donor truck. I'm planning to just take everything out of the donor and install it in my 4x4 suburban. I have purchased hd engine mounts and crossmemeber from ORD. The transmission in the donor truck looks a bit different than the 700R4 in my truck -- it only has four bolts from the engine to the bellhousing on the tranny whereas my 700R4 has six. However, the tranny on the donor looks like it should have six! Any advice for me? I know I need a new torque converter, what is recommened?

Before I'm slammed for not being a supporting member -- my company has the membership login page blocked -- they're promising to unblock it any day now!~

Thanks in advance for any advice -- I appreciate it any and all input that could make this swap easier.

Oh, I'm currently running 4.88 gears with front/rear detroits and 35's. I'm pretty sure I'll have to go to (bummer ) either 37's or 38's to keep the rpm's down.

 

[BKinzey]

The input shafts are different between 2 wheel & 4 wheel drive 700r4s. I think my 700 has 6 bolts

Yep you need a different converter for diesel and a different governor as well. You should be able to pull both out of the donor vehicle unless you want new

If the donor's tranny is in better condition you could swap input shafts. It's more involved and I haven't done it but have read it's not too bad.

Pull the radiator out of the donor as well. It should be a 4 core and have a built-in tranny cooler.

As for torque converters I'm looking at TCI 'cuz they have a name and a diesel TC for under $300

 

[k204dr]

sounds like its just missing two bellhousing bolts.

 

[matneyr]

The donors tranny is just shot. Thanks for the tip on a TC -- the input shaft shouldn't be that bad, right? I'm trying to get all this accomplished in one weekend!