GM 8.5" 8.6" 10 BOLT differential 3.73 ratio ring pinion set
3.73 ratio ring/pinion gear set
Part #GM85373 (1259441)
Our line of RING & PINION gears are machined from high grade forged steel, cut using a 2 cut process
and properly hardened for ease of installation and to withstand abuse expected in the high performance industry. Very little to no operational noise when properly set up.
As with any ring & pinion set, it is suggested to have them setup by a professional for best results.
We stock a full line of differential gears, bearings and installation kits.
Please call us @210-858-8557 Mon-Fri 10am-5pm CST prior to purchase with questions to reduce incorrect orders, returns and improve your overall purchasing experience with us.