Exchange one position at a time
Retain the large detent spring and transfer its original O-ring to the larger replacement. Tighten that replacement to 120 in-lb. For each smaller location, fit the supplied O-ring, transfer the spring and torque to 80 in-lb. Check all gears after each change.
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Restore the support
Crossmember M10 nuts: 25 ft-lb; M10 bolts: 51 ft-lb; M12 bolts: 100 ft-lb. Shield M8 bolts: 8 ft-lb. Restore exhaust connections. Confirm every gear before driving and investigate clunks or extreme vibration.
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Products in this guide
Sources / references 1
- PERRIN official installation instructions ↗Reviewed Oct 8, 2026
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