Thread: dumb trans questioin...

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Check out this item on Ebay. You can't build a transmission for the money this guy gets. We have bought a C6 and Turbo 350 from him, and they were a steal. His Ebay rating is like 2100 with 100% positive!! This particular trans will handle 500 HP, but he has others for more. (click on sellers store)



Here is the ebay item number 8000470988.

Not trying to promote any particular vendor, but I think when someone finds a good , or bad deal, they should tell other rodders.


Don

the 1-2 shift if a 700r4 is controlled by the servo in the side of the case, which pushes the second gear band on. Also if you lost everything but first and it just won't shift out of first, you might have run it out of fluid. If the fluid comes out black and smells rather burnt then its possible that all you'll need is a new set of clutches and steels. When you pull the band out of the case, look at it but don't bend it. If it looks black like its burnt, replace it. If it has a lot of visible cracking, replace it. Make sure to look at all of your planetaries because that can be a problem too. The gears in the planetaries get eaten up and a blown up planetary is not a good sight. Then check the sunshell to make sure that it hasn't sheered the nose off of it. After that check the sungear's teeth for wear. Then make sure the sprag only turns 1 way. It should turn 1 way and lock in the other way. After that check the rear planetaries to for wear and things.

Your assembly from front to back in hard parts should go: pump, 2 drums (band around the first drum with the lock button under the valve body in place), front planetary assembly, sunshell, sun gear, sprag, rear planetary, rear piston. Be sure to take the rear piston out of you can because the lipseals on those have a tendency to ruin themselves. A 700r4 basically stacks exactly like a th350. There's just a few different things about them.

My advice if you want to do it yourself, which isn't that hard, would be to tear it down, bathe the entire thing in solvent (mineral spirits), and be sure to get a manual to tell you specifications, service calls (things that go wrong a lot which a manual that is up to date should tell you how to fix them), ect. Just be clean and pay attention to what you are doing.