Cortez
Bronco Guru
- Joined
- Jan 29, 2009
- Messages
- 1,193
Hey y’all - just did an AX15 conversion from an NP435. Test run…man this baby shifts so smooth and easy! When I get to highway speed, I noticed a vibration on deceleration…so when shifting between 4th and 5th that moment when it decelerates slightly I get vibration. The vibration goes away on steady state driving or acceleration. And I notice it less when down shifting and decelerating under engine drag. Don’t notice any vibration between shifts at slower speeds. Note: I thought the driveline length was unchanged between the AX15 and stock 3 spd or NP435…however I did note that while reconnecting my rear driveling I found that it was all the way compressed and would barely squeeze into the t-case yoke. So any situation that requires a compression of the driveline from unloaded static position may be stressing the drivetrain in some way?
let me know your thoughts here, and thanks in advance.
Dave
let me know your thoughts here, and thanks in advance.
Dave