Availability
Full Spools and Mini Spools
You don’t want to be a one-tire fryer at the track, and welds can weaken your axles—full spools and mini spools are the stronger way to lock your axles together...
You don’t want to be a one-tire fryer at the track, and welds can weaken your axles—full spools and mini spools are the stronger way to lock your axles together for maximum traction!
Spools (also called full spools) replace your differential carrier and lock the left and right axles together. There are no moving parts, they add support to the ring gear, and they can save unsprung weight.
Mini spools fit inside an existing open differential, replacing the side and spider gears. They’re usually less expensive, but aren’t as strong as full spools.
Top Brands
For maximum traction, shop for spools and...
You don’t want to be a one-tire fryer at the track, and welds can weaken your axles—full spools and mini spools are the stronger way to lock your axles together for maximum traction!
Spools (also called full spools) replace your differential carrier and lock the left and right axles together. There are no moving parts, they add support to the ring gear, and they can save unsprung weight.
Mini spools fit inside an existing open differential, replacing the side and spider gears. They’re usually less expensive, but aren’t as strong as full spools.
Top Brands
For maximum traction, shop for spools and mini spools at Summit Racing Equipment—find your axle size below. Summit carries trusted name brands like Strange Engineering, Yukon Gear, Dana Spicer, Motive Gear, Moser, Allstar, and more.
Showing In Stock Items. Show All 270 Items.
Spool, Lightweight, Pro Race, 35-spline, Steel, Ford 8.8 in., Each
Part Number: STR-D1567
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
BUILD IT WITH SUMMIT!
Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each
Part Number: SUM-730075
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Mini Spool, 30-spline, Steel, GM 10.5 in. (14-bolt), Each
Part Number: ALY-GM14MSPL
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 31-Spline, 10-Bolt, Ford 8.8 in., Each
Part Number: MGR-MS88-31
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: SUM-730085
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each
Part Number: SUM-730120
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 31-Spline, 10-Bolt, Ford 9 in., (strip & track only), Each
Part Number: SUM-G7811
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 40-Spline, 10-Bolt, Ford 9 in., Each
Part Number: STR-D2000
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each
Part Number: MGR-MS75-26
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 28-Spline, GM 7.625 in., Each
Part Number: MGR-MS75-28
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 35-Spline, 10-Bolt, Ford 9 in., Each
Part Number: STR-D1555
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 28-Spline, 10-Bolt, Ford 8.8 in., Each
Part Number: MGR-MS88-28
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Performance, Full, Steel, 30-spline, Dana 44, Each
Part Number: SDH-2023397
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 33-Spline, 3 Series, 12-Bolt, GM 8.875 in., Passenger Car, Each
Part Number: MSR-5S1233-3
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Mini spool for GM 12 bolt with 30 spline axles
Part Number: YGA-32227
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 35-Spline, 10-Bolt, Dana 60, For 4.10-6.50 Richmond and 4.56-7.17 Ratio Dana/Spicer Gear Sets, Each
Part Number: STR-D1548
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Fullsize, Aluminum, 31-spline, 2.032 in. Journal, PEM Quick Change, Each
Part Number: PE2-QCFSA31
Not Yet Reviewed
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each
Part Number: RMG-78-7526-1
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 30-spline, 10-bolt, GM 8.5 in., Each
Part Number: YGA-32233
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 35-Spline, 10-Bolt, Ford 9 in., Each
Part Number: MSR-5S9F35
Not Yet Reviewed
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Performance Mini Spool (GM 8.5 - 30 Spline)
Part Number: SDH-10015388
Not Yet Reviewed
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 30-Spline, Chrysler 8.75 in., Each
Part Number: STR-D1556
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.2 in., Each
Part Number: SUM-730082
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Mini Spool, GM 7.5 in. 10-Bolt, Open Carrier, Equal Windows, 28-Spline, Each
Part Number: RMG-78-7528-1
Not Yet Reviewed
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
Spool, Full Size, Steel, 31-Spline, 10-Bolt, Ford 8.8 in., Each
Part Number: STR-D1558
Estimated Ship Date: Monday 2/9/2026
Estimated Ship Date: Monday 2/9/2026
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