I have a 1983 4x4 S-10 Blazer with a bad engine and a 1987 4x4 S-10 Blazer with a bad transmission. I want to put the 83 trans. into the 87. I have been told that the 83 will bolt up but the torque converter will not lockup and the check engine light might stay on. I suppose that I could put a manual switch for the converter lockup but I do not know if the engine electronics/computer will be adversely affected. Any comments or advice would be appreciated.
John
Phoenix

it will work all u have to put is a toggle switch to the wires to lock the convertor in.

That could be a bad thing or a good thing. What happens when he comes to a stop and has to pull out again?

You just need the matching torque converter. Your existing torque converter should be fine.

Thanks for the 3 replies to date to my question about using a 1983 700R4 in a my 1987 Blazer. I have a question regarding the posting by RLITH who stated 'You just need the matching torque converter. Your existing torque converter should be fine." Actually, I am not sure that my existing converter is any good. It is still in the vehicle but I heard some unhealthy noises coming from there before it quit entirely. If it is bad, how do I match another one to my transmission? Will just any converter work?
John
Phoenix

Simply just cross ref the transmission # (the code should be on the sticker on the tranny or you can use the casting number) to match the torque converter from who ever you buy it from.

Thank you.
John