Sonnax pinion pin 77731-02K is a direct replacement for worn or damaged OE pinion pins in rear planetaries in listed GM transmissions. Hollow design features lube holes to reduce planetary burn-up.
Sonnax pinion pin 77731-02K is a direct replacement for worn or damaged OE pinion pins in rear planetaries in listed GM transmissions. Hollow design features lube holes to reduce planetary burn-up.