When the front band in a TH400 or 3L80 automatic transmission shows glazing, cracking, or uneven wear, this woven flex band gives you a direct replacement built to handle the thermal and mechanical demands that unit puts on that component. What sets this band apart from standard friction alternatives is the woven construction, which distributes heat more evenly across the lining surface and resists the breakdown that shortens the service life of conventional bands under repeated apply cycles.
The TH400, also catalogued as the 3L80, has been in production since 1965, and this band covers the full range from that first model year forward. It is a single-piece item: one 425 flex front band, 1 inch wide, ready to install. At 0.4 lb it ships light, but the weave density gives it the structural integrity that application requires. There are no additional components in this listing. No Automatic Transmission Filter, no seals, no clutch plates, no rebuild hardware. If your job calls for a complete overhaul, you will need to source those parts separately and verify each one before you start the teardown.
REMCO has been working in automatic transmission parts since 1991, and every item that leaves the shop is checked against its part record before it goes out. The band you receive is the band listed, nothing swapped, nothing substituted. Before placing your order, cross-check the transmission identification code on the actual unit, not just the vehicle model year, to confirm you need the 1-inch wide front band specification. Both TH400 and 3L80 designations apply to the same mechanical unit, so either code confirms fitment.
- Replacing a worn front band with a woven unit reduces slippage risk and helps the transmission hold apply pressure where it matters most.
- This listing covers the band only. No soft parts, no steels, no Automatic Transmission Filter, no rebuild kit. Confirm what else your job needs before ordering.
- weave handles heat cycles that can break down standard friction materials, maintaining consistent band function across extended service intervals.
- One 425 flex front band, material, 1 inch wide, rated for TH400 and 3L80 units. Item weight: 0.4 lb.
- Before ordering, verify the transmission code stamped on the unit, the model year of the vehicle, and that your application uses the 1-inch wide front band specification.
What's in the box
- 1 x Band, TH400425 FLEX Front [] [1 Wide]
Compatible vehicles
- Fits K2500 Panel Delivery 3/4 Ton 4WD [67].
| TH400425 Band FLEX Raybestos Front (Kevlar) (1 Wide) 1964-Up |
Default Title |
|---|