Description
Need a replacement PR spring from one of our kits, transmission builds, or just looking for an upgrade heavy PR spring for your TH400?
Look no further. T400PR is the aftermarket PR Spring that ATD uses in all of our in-house racing transmissions and included with all of our valvebody & transbrake kits.
Base pressure of 200 psi with no horseshoe shims in the regulator stack, 240+ psi with one shim.
Designed and manufactured in the USA.
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