Tremec T-56 Magnum Input Shaft Bearing Shim Kit

OEM Tremec shim kit for setting correct input shaft bearing preload on T-56 Magnum transmissions. Required for proper rebuild and long-term durability.

This is one of those small parts that makes or breaks a T-56 Magnum rebuild.

The Tremec TUKT10828 input shaft bearing race shim kit is used to correctly set input shaft bearing preload during assembly. Get this wrong and you introduce noise, premature bearing wear, and long-term reliability issues—no matter how good the rest of the build is.

This kit gives you the correct OEM shim range Tremec specifies so the transmission can be set up properly. No stacking random shims. No guessing. No shortcuts.

If you’re rebuilding a Magnum and you don’t have this kit on hand, you’re not ready to close the case.

What This Kit Is For

• Setting input shaft bearing preload
• T-56 Magnum transmission rebuilds
• Correcting endplay during teardown and inspection
• Professional or experienced DIY transmission assembly

Kit Details

• OEM Tremec input shaft bearing race shim kit
• Shim thickness range: 0.335–0.914 mm (0.014–0.036 in.)
• Tremec part number: TUKT10828
• Designed specifically for T-56 Magnum transmissions
• Sold as a complete shim selection kit

Why This Matters

Input shaft preload is not optional—it’s critical.

Incorrect preload can cause:

• Gear noise
• Bearing failure
• Excessive heat
• Reduced transmission life

This shim kit ensures the transmission is assembled to Tremec spec, protecting your time, labor, and investment.

It’s inexpensive insurance compared to tearing a Magnum back apart.

Installation Notes

• Requires full transmission disassembly
• Intended for rebuilds and precision setup
• Preload must be measured and set correctly
• Not a bolt-on service item

If you’re unsure whether your rebuild requires shimming, contact us before assembly.

SKU: TUKT10828