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Ring and Pinion Ratio
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Head Bearing Included
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- Yes (2)
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- Yes (2)
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- $250-$500 (2)
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PEM Racing Quick-Change Rear-End Ring and Pinion Gears

Not Yet Reviewed

PEM Racing quick-change rear-end ring and pinion gears feature magnesium/aluminum construction, a heat-treated lower shaft, roller pinion nose bearing, aluminum pos

PEM Racing quick-change rear-end ring and pinion gears feature magnesium/aluminum construction, a heat-treated lower shaft, roller pinion nose bearing, aluminum posi nut, and fast build time. They're available with a 4.11:1 or 4.86:1 ring and pinion ratio, and different ring and pinion gear teeth counts. The kits are offered standard, or "loaded" with the posi nut already installed and an included roller nose bearing.

Options / details:

* 4.11 or 4.86 ratio ring and pinion
* Black thermal coating, inside and outside
* REM finish on ring and pinion for less friction and drag
* REM finish on all bearings and races for less friction and drag
* Drilled aluminum spool
* Drilled lower shaft - 10 spline
* Gun-drilled axle option on Complete GN kit
* Lightened ring gear
* Breather kit
* 6 or 10 bolt Big Bearing billet rear cover
* 9 in. outside diameter ring gear for crate engines only
* 9.5 in. outside diameter ring gear for lighter rotating weight
* 5/8 in. wall heavy tube available for left rear in both GN 2.5 in. and Wide 5 snouts
* 8 rib side bells
* 1 ton aluminum tubes for Super Dirt late model
* Black aluminum tubes for Dirt late model rears

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