| Re: 6 Speed manual Trans S-640 Replacing a 4+3 |
Subject: Re: 6 Speed manual Trans S-640 Replacing a 4+3 by CentralCoaster on 2008/5/23 19:06:01 You got it. Other than the noise, the other downside of the ZF is the low quality clutch components. Whatever you do, avoid the DOM (smooth, thin, black powdercoated) clutch cylinders like the plague. They use aluminum pistons which will corrode the hell out of the steel cylinder walls. Buy cast iron ones instead. These have steel pistons, although the seals aren't quite as good so you may get a little more weepage over time, but overall it will last longer. I already destroyed one trans from a bad clutch master, I don't want to do it again. Also the reservoir caps on the cast units suck, reuse the rubber boot from your 4+3 master. And I don't like the throwout bearing setup, they are prone to failure and defects so inspect them carefully before installing. All of those parts mentioned above are made in China. But in this case you don't have a choice. |
