Garage Customer Service Center
Back to Main Menu
Customer Service Center

USA Standard Ring & Pinion gear set for GM 8.5" in a 3.90 ratio | ZG GM8.5-390 | RANDYS Worldwide

Product Details

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing.

  • Fits GM 8.5" and 8.6"
  • 8.50" ring gear diameter
  • 30 spline pinion
  • 10 ring gear bolts
  • 3.90 ratio

Technical Notes

Warranty Information

Warranty information unavailable

Compatible Make / Model

Specification

Brand USA Standard Gear
Prop65 Warning No
Keywords **,_USE_OEM_4_IMPLA__CAPRICE,3.90,8.5,8.6,DIFFRPGM85390,GEAR,GM,GM10-390,GM8.5-390-MGHP,GM8.5-390-NG,RP,STANDARD,USA,ZG
Ratio 3.90
EndRatio 3.90
UPC 883584362159
ProxyNumber 36215
Width 12.00 in
Length 16.00 in
Depth 6.00 in
Weight 18.1600 lb
Brand: USA Standard Gear

USA Standard Ring & Pinion gear set for GM 8.5" in a 3.90 ratio

ZG GM8.5-390

13 in stock

$321.89
Please make a selection for each of the required (*) options above before adding item to cart.
Warehouse Availability
  • CA 0
  • KY 11
  • MN 2
  • TX 0
  • WA 0