What gm autos have compatible parts for a 87 buick lesabre?

i might need to get another tranny,what other gm makes %26amp; models could i look for to use as a parts car?What gm autos have compatible parts for a 87 buick lesabre?it,s probably got the 3800 engine so as for transmissions the oldsmobile and pontiac will interchange. you best bet is buy a old junker, strip it down and save the parts like the computer, radiator, motor if you have a place to store it and just about everything you need off of it. now the body parts might be different but you should find a lot of extra parts to hold on to then call the junk yard and let them have the shell.What gm autos have compatible parts for a 87 buick lesabre?Any Buick, Olds or Pontiac with rear wheel drive, '81 to '89, basically.

What you need to do is identify your transmission.

Check this link:

http://www.nastyz28.com/chevy-transmissi鈥?/a>

You probably either have a 3 speed TH350, or a 4 speed (3 speed with overdrive) 200-R4