Very little. the shifter is the same if it is a column shift car, only the indicator on the dash is different and you can do without that if you like. The trans crossmember and trans mount are the only things that need to be changed. Just get the crossmember, mount and hardware from the donor car at the time you pull the trans. If you get it from other than a G body, just be sure it is not a Cadillac with the 4100 V8 as it does not interchange according to the Hollander listing. You will also want a shorter rear gear when you do the swap because it will lug the engine with the 2.41 axle most V6 cars came with. If you have the 3.23 axle, keep it. It's one of the best factory street gears offered in a G body. Oh, the driveshaft is the same, so is the starter and the speedo cable and TCC plug also plug in to the Th200 4R from a TH200C.
The list of what I used in my 350/TH200 4R for 3.8/TH200C swap can be found at this link: http://gbodyforum.com/viewtopic.php?t=2020 I include more than necessary for a bare bones swap, but I like cars that have everything functional like the factory would have made it had it made it.
The list of what I used in my 350/TH200 4R for 3.8/TH200C swap can be found at this link: http://gbodyforum.com/viewtopic.php?t=2020 I include more than necessary for a bare bones swap, but I like cars that have everything functional like the factory would have made it had it made it.
