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Message: <blockquote data-quote="Dalamar" data-source="post: 585308" data-attributes="member: 8116">Ooooh, I've been looking at rebuilding my stock R470 for the last while. let me share what I've found out, hopefully it will answer some of your ?sI've talked with Lentec and done some research and I'm thinking - why can't I have mine rebuilt locally for less money?I found a local guy (Ashcroft Transmissions) thats been doing automatics for a looong time. he was cool enough to have me bring mine in and tear it down while I was there.He showed me the different parts, and how they work ect. and what he's seen go bad over the years.Based on his experience and what I saw in my transmission, I'm going to rebuild mine.I think there's No need to spend a few extra GRAND on a brand name transmission, when you can have a local shop rebuild the one you have.I'm not saying "brand name" parts arn't a good thing... but Apparently, the R4 is a pretty good transmission!He told me the most common problem he's seen comes from 2 of the snap rings in there - the end's break off, and the pieces getting jammed up inside and tear things up.You can replace these with an updated ring, approx a $5 part, and rebuild the rest. He said the stock clutches are fine, and "aftermarket" clutches don't do anything special. Here's something I didn't know - the transmission it's self runs on bearings, so it genereates almost no heat. just a little when the clutches are engauging. Almost all the heat comes from the staul convertor!You'll definaltely want a cooler.He also recommended getting a deeper pan that holds more oil. this also helps with the cooling. An updated staul converter makes the biggest difference in drivablilty and take-off. Get one made to your car's specs.I didn't ask many questions about the valve body because I have a Lentec valve body I bought about 3 years ago. I'm going to just use that.He recommend NOT getting a shift kit because the pressure spikes and changes in the shift timing causes wear.the staul convertor and shift timing of the valve body should work together and efficiently. the valve body can be calibrated to make the shifts firmer.So that's the rought I'm going as soon as I can sell my TKO setup. I hope you find this info helpfull.</blockquote>