auto trans line pressure

[Mallory]

What line pressures can an auto trans tolerate before certain stock seals in the trans fail? What size and type gauge is best to test these pressures? I think the test post is in the side of the drivers of the trans? In short I bought a kit to install in the trans to boost pressure but I do not want to risk blowing any seal with to high line pressure. When I bought the kit I made it known that I did not want to remove the trans then when I get the instructions they say remove and install this seal. Thanks for any help brian mallory p. s. 2001 truck

 

[Mopar-muscle]

brian i have seen pressures as high as 150psi at wide open throttle . pressure all depends on what the kit you bought tells you to do .



as far as the seal , what seal is it ? nothing says you have to replace it .



the port to check line pressure is on the pass side of the trans , there are 3 right on the side , you want the center one , its 1/8 npt , get yourself a 10 ft long hose and a gauge that is at least 0-150 psi . line pressure will only show there in D , check pressure while driving down the road . maybe take a helper to look at the gauge while you drive .

 

[Mallory]

Thanks for the advice. The seals are the front clutch inner and outer lip seals,and pump stator sealing rings. The kit gives two pressure relief springs to install along with a shim. Final pressure relief adj. sayes to adjust screw 3 c. cw. turns from flush but gives no pressure specs to check. I wish I had just saved my money for something like a reworked v. b. but I do like doing my own mods. sometimes. thanks brian