4L80E TH400 [64-UP] Automatic Transmission Bushing Case (No Walk Out)

A worn or migrating case bushing in a 4L80E or 4L85E automatic transmission can allow shaft movement that wears surrounding bores and leads to pressure loss and repeat failures. This single bushing is built with a no-walk-out feature that keeps it locked in the case bore once installed, addressing the root cause rather than just replacing like for like.

This listing covers one part: the case bushing with no-walk-out retention. Nothing else is included. There are no seals, no gaskets, no clutch plates, no Automatic Transmission Filter, and no additional bushings in the package. If your rebuild requires those items, they need to be sourced separately, so review your parts list completely before placing this order.

The no-walk-out design matters in this position because a conventional bushing can migrate under the thrust and heat loads that 4L80E and 4L85E units generate. Once a bushing walks, end play open up, wear accelerates, and the unit may come back apart sooner than expected. The retention feature on this piece is built into the bushing itself, not added with adhesive or extra hardware.

REMCO has worked in automatic transmission parts since 1991. Each piece is pulled, checked against its part record, and packed at the REMCO facility before it leaves. The part number on the box matches what is inside.

This bushing applies to 4L80E and 4L85E units from 1964 forward. Before ordering, confirm the transmission code stamped on your unit and identify which bushing position you are replacing. Application years span a long production run and unit specifications can vary, so verify the fit against your specific assembly.

• Stops shaft movement caused by a worn or displaced case bushing, helping avoid repeated teardowns and fluid leaks at that location.
• This listing is a single bushing only. It does not include seals, gaskets, clutch packs, steels, Automatic Transmission Filter, or any other component. Verify what else your rebuild requires before ordering.
• The no-walk-out design keeps the bushing seated in the case bore under operating load, which a standard press-fit piece may not hold after years of heat cycles.
• Exact content: one case bushing, no walk-out retention feature. Weight: 1 lb. Packed and checked against its part record at the REMCO facility before shipment.
• Before ordering, confirm your transmission code is 4L80E or 4L85E and that this is the specific bushing position you need. Application range covers units from 1964 forward.

What's in the box

• 1 x Bushing, 4L80E Case Th 400

Compatible vehicles

• Fits C1500 1/2 Ton - Pickup [95-96], C2500 3/4 Ton - Pickup [95-96], K1500 1/2 Ton 4WD - Pickup [97-99], K2500 3/4 Ton 4WD - Pickup [97-00], G10/1500 1/2 Ton - Van [96], Suburban K1500 1/2 Ton 4WD [95-96], Suburban K2500 3/4 Ton 4WD [95-96], Savana G2500 3/4 Ton - Van [96], Yukon [95-96], (H1) [94-07], Avalanche 2500 3/4 Ton [02-06], Express G1500 1/2 Ton - Van [96].