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Re: 700r4 pump question
Definitely replace the pump. Mine went out on my 700r4. The shop that replaced the pump said the trans looked in great condition, recently rebuilt with little to no wear on any of the clutch bands. I say that, to say, I put my foot to the floor while toad testing my truck and lost the pump. It doesn't take much to finish off a pump.
Ask a trans shop about which pump they recommend. There are 10 and 13 vane pumps (7 too but it's an old crappy style) and the 13 vane isn't always better. The trade off is volume vs pressure depending on your application.
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