Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.42 4386XLGBK Adjustable Ratchet Mechanism

Adjustable Ratchet Mechanism

which means ignition timing is stable from 1 to 10

Includes 3 Sets of 8 Stacked Tear Offs

Made using lightweight

Can be used with or without ear cups (ear cups included)

Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.42 4386XLGBK Adjustable Ratchet MechanismQuality differential components are suitable for race, street, and off road use. Lapped in matched sets for quiet operation. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance.