| RE:BACK IN THE SHOP! |
Subject: RE:BACK IN THE SHOP! by bogus on 2007/11/8 15:20:14 I agree, fluid service is very important. But when metal components inside the box simply shear off, that's a problem. I have seen more then my share of 700R4s go up in smoke ( and that's what he would have to use on that car, because he doesn't have controls to run a 4L60E). The 4L60 isn't updated enough to justify the name change. A friend here had a supposed super duty 700R4 go up in smoke last year. It was in a 1971 Chevelle with a rather mild 454 in front. His brother has a 2000 Vert, and it toasted it's 4L65E just last week. I have read just too many horror stories of 700R4 based boxes blowing up... even good ones. They consistantly eat up the 3/4 clutch pack... in both cases above, the car had 1st, then 2nd, then nothing. that was it. Personally, I would love to suggest something like a 4L80E, but that's EXPENSIVE. It is, tho, the best damned auto on the planet. It's the old TH400, with an overdrive unit. The unit requires a controller... figure over $5k total. Another option is the TH400 with a gear vendor OD, but that is about the same price... For example, and I do agree proper maintenance is very important. Chysler here in the states was having issue with their transmissions slipping at about 70k miles. The problem? Old fluid was causing the internal seals to harden. That was causing pressure loss and slippage. The fix was to rebuild the box, but it was still inherently ok... a real waste. The real fix? replace the ATF every 30k... |
