Thread: Trans question 700R4

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Originally Posted by MadMax

It seems to have a generous amount of slip, although it's a new rebuild and the pressures are OK.

I am wondering if the slip you are experiencing is the stall on the torque converter. Do you happen to know what stall it is? If one has a high stall converter, say 3000, and if you have a sift kit installed, it will seem to be a sloppy shift.

Originally Posted by MadMax

1. How do I drain all the fluid? Not just that in the pan?

You will want to drop the pan and the oil, install a new filter, reinstall the pan, disconnect the tranny cooler lines, hang one line in a new pail of tranny fluid and the other to catch the fluid coming out of the converter. Start up the engine and allow a dozen of quarts to cycle throgh the tranny and your done.

Originally Posted by MadMax

2. How do I notice whether my TCC is locking up?

Ok, this is easy. Drive down the road at 2500 rpm in third gear postition or in OD. The tranny will have to be warm. Once the converter locksup, it will operate as if it is a standard transmission, no gain in rpm when you step on the gas slightly. As the vehicle speed increases, so will the rpm of the engine.

Originally Posted by MadMax

3. How would uncorrect thrust washers influence the driving quality of my trans?

Exactly which washers are we talking about? If your clutch packs are too loose, that would do it. I think you want about .020 (twenty thousands of an inch.)