SL F8.8-31 Spartan Locker Ford 8.8" Rear 31 Spline Axles
The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard open case, will not work in a posi carrier. The Spartan locker's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.
- UPC:
- 883584170051
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.8
Out of 5.0

Overall Rating
97%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
April 11, 2025 by David H. (United States)
“fast and convenient”
Company Choice
had what I needed
Product Choice
direct replacement
April 10, 2025 by Alex (United States)
“I've ordered from Drivetrain America numerous times in the last few months to get floor mats for all of my trucks. Check out is easy and shipping is fast.”
Company Choice
They have what I need, when I need it.
Product Choice
The mats are easy to put in and take out to keep the cabs/floorboards of my trucks clean. Minimal effort is needed to install with no trimming and quality/durability of the mats are 10/10. All of our trucks have Minimizer floor mats in them.
April 10, 2025 by Trevor C. (United States)
“Good quality glad I purchased it stopped my leaking transmission as well as vibration. 1991 Ford ranger 2.3 2wd manual you will need ujoint for 4x4”
Company Choice
Great communication from parts department
Product Choice
Looked better then anywhere else