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- Ring & Pinions
- General Motors
- GM 8.5/8.6"
- GM 8.5" 4.11 Ring and Pinion USA Standard Gear ZG GM8.5-411
GM 8.5" 4.11 Ring and Pinion USA Standard Gear ZG GM8.5-411
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1 product review
)
Product Description
USA Standard ring & pinion sets are the right choice when price is a factor and quality is essential. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a lower cost alternative to other manufacturers when price must be kept low. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.
Application: 1972-2013 GM 8.5" and 8.6" Rearend (will also fit 1980-1987 GM 8.5" corporate front end)
Technical Information
- Ratio: 4.11
- Compatible Carrier: 2.73-5.38
- Pinion Splines: 30
- Ring Gear Bolts: 10
- Rear Cover Bolts: 10
- Ring Gear Diameter: 8.5"
Warranty Information
Vendors Other Products
Product Reviews
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A little noisy but good for the price
Posted by Erik H on 9th Jan 2017
I installed these in a 04 Tahoe with a Yukon Duragrip. I have installed many gears and am confident in my setup. With pinion preload at 19inlb, a nice smooth centered gear pattern (.035" pinion shim) and .008" backlash with lots of carrier bearing preload, these gears whine a little on decel at certain speeds and on light accel at certain other speeds. However, they are cheap and the noise is slight. In my opinion they are a good deal.
