Quote Originally Posted by bmiszuk
Thanks Robyn, you need to make a sticky of that info!

My question is this.. I can't find an 89 K case. How terrible is it to use my 83 again? Is the difference significant?
The K case is heavier. They are easy to identify as there is a big K cast into the bellhousing. The difference is significant. It should not be hard to find one - just about any late-80's Chevy/GM truck with a big block or diesel should have one. I have seen lots of them in wrecking yards. When I bought my trans, I was able to order it with the K case.