Motive Gear F890666AX Ford 9 Inch Lightweight Ring and Pinion, 6.66 Ratio

Description

Features a lightweight ring gear, Less rotating mass means faster acceleration, Specifically designed to fit Ford 9" style rear end housings, Made from 8620 heat treated material and has a 28 spline count, Ring has a total diameter of 9" and the pinion diameter measures 1.313"
Motive Gear F890666AX Ford 9 Inch Lightweight Ring and Pinion, 6.66 Ratio
Sku # 91989-6.66
Mfr. Part # F890666AX
Condition
New
Brand
Motive Gear
Sold
Set
Details
Notes
Note: Circle track racing applications require a minimum of 4 qts. of rear end lube. Using less than this amount will lead to immediate pinion bearing failure.
Info
Perfect for lightweight racing applications, these ring and pinion performance gear sets are designed to fit Ford 9" style rear end housings. Motive Gear recommends the use of a daytona pinion support and solid pinion spacer in all racing applications.
Lightweight ring gear
Less rotating mass
Faster acceleration
Ring diameter: 9"
10-7/16" x 20 right hand threaded bolts
Pinion diameter: 1.313" 28 splines
8620 heat treated material
For use in:
NASCAR
NEXTEL CUP
BUSCH GRAND NATIONAL
CRAFTSMAN TRUCK
ARCA
IMCA
UMP
IHRA
NHRA
Specs
Material Type
Steel
Sold in Quantity
Set
Spline Count
28
MFG. Part #
F890666AX
Ratio
6.66:1
Pinion Tooth Count
6
Shaft Diameter
1.313
Outside Diameter
9.00
GTIN Code
698231482704
Ring Tooth Count
40
Reviews
I would buy this again
Rated
by Manalynn on April 13, 2018
Summary:
Great
Yes, I recommend this product.
Excellent made product
Rated
by 68e on August 22, 2017
Summary:
Arrived early and installed woth precision.
Yes, I recommend this product.
I would buy this product again the quality is good
Rated
by Dustin on April 19, 2017
Summary:
I use this for circle track and they are a quality product reasonable pricing.
Pros:
Easy To Set Up
Yes, I recommend this product.
Related Items / Suggested Parts
Ford 9 Inch Ring Gear Bolts, 7/16-20 x 1 Inch, Hex, Set/10
Pinion Nut for 9 Inch Ford
Ford 9 Inch Daytona Forged Aluminum Pinion Support
9 Inch Ford Rearend Axle Housing 3rd Member Pumpkin Gasket
9 Inch Ford Pinion Crush Sleeve
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