Quote Originally Posted by FlyingV77 View Post
What exactly is the weak link in our tranys? Can't seem to find it in the 100ks of posts. Is it the case or the internals? I'm back to work and ill be doing an engine swap and need to know wha I have to upgrade in the drivetrain to keep the tod
Transmission guy here in Cincy with alot of experiance and a huge shop just for laying out and rebuilding tranny's 5 days a week said the 4L30E evolved from what amounts to the tranny for a Chevy Chevet, the econo box; and it wasn't really meant for 4WD all the time let alone towing a payload while 4WD. He showed me the casing and similarities between cousins of the same tranny's, I was shocked, he also showed me the inside of the "intercooler" build in the the VX radiator, it's a total joke and not worthy of the name. We by-passed the stock intercooler alltogether and installed an auxilary intercooler. He showed me alot of the internal parts of the tranny in mine that were destroyed. They aren't heavy duty, and there are no heavy duty parts for this tranny. I got rebuilt for and a total exhaust refit for well under 2K and got a 12K warranty. So far so good. It never actually ran this well when I got it, never shifted this smooth. Guy before me had a class 3 hitch that I removed so it was abused. From what I have seen, I have to stand by what I said originally, we all have to rebuild at 75K or you'll be spending even more money for expensive parts. Even the CASE of my tranny had to be replaced due to worn shaft inputs, something that's never supposed to fail frankly so I got a deal at a flat rate repair price cause I needed everything, including a casing for my tranny..... long live the VX! I will drive mine on MARs in the year 2112! RUSH!