Input and output shafts carry the full torque path through a transmission, so spline condition and length are what determine whether a unit is usable. Replacing a twisted or worn shaft, or fitting the correct length for a swap, is often what allows an otherwise healthy transmission to be put back in service.

Advance Adapters 52-3021 Compatibility Notes:

• 21-Spline.
• Jeep AX5 Applications.
• Sold Individually.