I have a guy looking into the final drive on the 4t40. He thinks he can get it down to 2.87ish, which would be perfect. I will be installing a few new components in the tranny to make it hold up to the power.
He also told me that I can use a 5 pin bosch NC relay to drive the B solenoid.
YAY!!!
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1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
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