converting deisel truck to gas

[arveetek]

Yep, the 700R4 was introduced in 1982 the same time as the 6.2L diesel. Nearly all, if not all, 1/2 ton automatic diesel pickups, Blazers, and Suburbans, whether 2WD or 4WD, came with the 700R4. Nearly all 3/4 ton and 1 auto diesel pickups and Suburbans came with the TH400. The SM465 manual was offered in either the 1/2 ton or 3/4 ton, 2WD or 4WD. Some early 6.2L diesel 1/2 tons also had the NP833 4 speed manual with overdrive, but they're kind of rare.

In 1991, I believe, the 4L80E was introduced behind the diesel. Then the NV4500 came out as the manual option.

The TH350 was never offered behind the 6.2L from the factory. However, a lot of 350 and 400 trannies have been swapped in over the years to replace a failed 700. A lot of the early 700's, as you well know, were not that great and failed often.

So, basically, the light duty trucks had the 700, and the heavy duty trucks had the 400.

My suggestion? Put a diesel back in that truck and enjoy the benefit of hight torque and great fuel economy!

Casey