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!

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.

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Results 1 - 12 of 12

Richmond Gear Mini-Spools 78-7526-1

Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each

Part Number: RMG-78-7526-1

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Richmond Gear Mini-Spools 78-7528-1

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 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Richmond Gear Mini-Spools 78-1230-1

Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each

Part Number: RMG-78-1230-1

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Richmond Gear Mini-Spools 78-8828-1

Spool, Mini, Steel, 28-Spline, 10-Bolt, Ford 8.8 in., Each

Part Number: RMG-78-8828-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 13, 2026 if ordered today

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Estimated Ship Date: Feb 13, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Motive Gear Mini Spools MS88-28

1.75 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/26/2026

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Richmond Gear Mini-Spools 78-1028-1

Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Richmond Gear Full Spools 81-1030-1

Spool, Full Size, Steel, 30-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-81-1030-1

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

Richmond Gear Mini-Spools 78-8831-1

Spool, Mini, Steel, 31-Spline, Ford 8.8 in., Each

Part Number: RMG-78-8831-1

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Richmond Gear Full Spools 81-1028-1

Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-81-1028-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Richmond Gear Full Spools 81-0931-1

Spool, Full Size, Steel, 31-Spline, 10-Bolt, Ford 9 in., Each

Part Number: RMG-81-0931-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Richmond Gear Full Spools 81-0935A-P

Spool, Full Size, Aluminum, 35-Spline, Ford 9 in., Each

Part Number: RMG-81-0935A-P

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Richmond Gear Full Spools 81-0928-1

Spool, Full Size, Steel, 28-Spline, 10-Bolt, Ford 9 in., Each

Part Number: RMG-81-0928-1

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Richmond Gear Full Spools 81-0935-3

Spool, Full Size, Steel, 35-Spline, 10-Bolt, Ford 9 in., Each

Part Number: RMG-81-0935-3

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

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