Coachbuilder Rear Driveline Spacer | 1.25" Thick for 10.5" Rear Axle | Fits Toyota Tundra 2007–2021 | Ekstrom Design
Coachbuilder Rear Driveline Spacer (1.25″) — Toyota Tundra (2007–2021, 10.5″ axle)
Lift the rear of a 2007–2021 Tundra far enough and the driveshaft starts pulling out of the slip yoke, leaving less spline engagement to carry the load. This 1.25″ CNC-machined billet spacer bolts between the axle flange and the driveline to extend the driveshaft back into the spline — restoring engagement at the axle on trucks with the 10.5″ rear axle.
| Spec | Detail |
|---|---|
| Thickness | 1.25″ (actual) |
| Function | Restores rear driveline slip-yoke engagement after lift |
| Material | 6061-T6 billet aluminum, hard black anodize |
| Axle | Fits the 10.5″ rear axle |
| Hardware | Included |
| Also available | 0.750″ version for milder correction |
| Origin | Made in the USA by Ekstrom Design |
| Fitment | Toyota Tundra 2007–2021 (10.5″ rear axle) |
What problem does this solve?
After a tall rear lift, the driveshaft can pull out of the slip yoke and lose spline engagement. This 1.25-inch spacer extends the driveline back into the spline to restore that engagement.
How is it different from a carrier-bearing drop kit?
A drop kit corrects the driveshaft angle at the center bearing; this spacer restores engagement at the axle. Tall builds often need both.
Does it fit my Tundra?
It fits 2007-2021 Toyota Tundras with the 10.5-inch rear axle. Hardware is included.
Is there a smaller version?
Yes — a 0.750-inch version is available for setups that need less correction.
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Specifications
Coachbuilder Rear Driveline Spacer | 1.25" Thick for 10.5" Rear Axle | Fits Toyota Tundra 2007–2021 | Ekstrom Design FAQs
How is this different from a carrier bearing drop kit?
They fix two different lift problems. A carrier bearing drop kit lowers the center bearing to correct the driveshaft's operating angle and cure takeoff vibration. This spacer bolts between the rear axle flange and the driveline to add length, extending the driveshaft back into the slip yoke spline after a lift has drawn it out. On tall 2007-2021 Tundra builds, running both is common.
Should I choose the 1.25" or the .750" spacer?
Both fit the 10.5" rear axle on 2007-2021 Tundras and do the same job — the difference is how much driveline length they add. This 1.25" version is the deeper correction for setups where the driveshaft has pulled farther out of the slip yoke; the .750" version suits milder cases. Coachbuilder doesn't publish a lift-height chart, so check your slip yoke engagement before ordering.
Will it fit my Tundra, and is hardware included?
It fits 2007-2021 Toyota Tundras equipped with the 10.5" rear axle — verify your axle size before ordering. The spacer is CNC machined from T6 6061 billet aluminum to fit precisely between the axle flange and the driveline, mounting hardware is included, and the hard black anodize finish is built for life under a truck.
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