Well this brings a question to mind. If i were to do this swap in my 89 extra-cab, I would not have to modify my driveshafts? I currently have a V6 chain drive case like the Original Poster, and also want lower gearing. I do plan on adding a doubler but this simple mod could make alot of V6 people happy for now , then add a crawlbox later when needed.
I guess the main question is this. Is a chain drive case the same length from Trans mating surface to rear t case output flange the same as a chain driven case? If no one can tell me this I have an Extra cab V6 chain drive case with a stock 2 peice rear shaft, and my brother has a 4 cyl extra cab with a gear driven case and stock 2 peice rear shaft. I guess i can measure both cases to give a comparison.
I am really hoping this is a quick mod becase i can get this case geared lower and twin sticked, then throw in a crawl box for the ultimate setup later.
If anyone has these measurements handy they would be appreciated.
