When hydraulic pressure bleeds past a worn or damaged sealing ring, the C6 automatic transmission loses the clamping force that clutch packs depend on, and no amount of adjustment corrects that at the source. This listing covers one sealing ring, a hard part built for the C6 unit produced from 1970 through 1977, sourced and handled individually rather than pulled from a bulk prepackaged assortment.
The part belongs to the D1-Hard Parts line, which means it is a machined rigid component, not a rubber seal or a bonded soft part. Its job is to maintain a tight interface inside the hydraulic circuit so that fluid pressure reaches the clutch pack at the intended level and holds there through each apply cycle. A sealing ring that has lost its fit allows that pressure to migrate where it should not, causing soft applies, delayed engagement, or progressive clutch failure over time.
This is a single-piece listing. It does not include friction discs, steel reaction plates, an Automatic Transmission Filter, a band, a gasket set, or any other transmission component. If your rebuild or repair calls for additional parts, those need to be sourced separately. Review your parts breakdown against the specific circuit location before placing an order.
At REMCO, which has worked in automatic transmission parts since 1991, every item is picked and verified individually before it ships. The box includes a parts list so the count can be confirmed on arrival. For a single hard part like this sealing ring, that means you know exactly what you received before the transmission goes back together.
To confirm fitment, check the transmission identification code stamped on your unit and verify the build year sits between 1970 and 1977. The C6 designation covers a range of configurations, so matching the specific location and diameter to your unit before ordering avoids delays on the bench.
- Restores hydraulic circuit integrity in C6 automatic transmission units from 1970 through 1977, preventing pressure loss that leads to slip and clutch burn.
- This listing covers a sealing ring only. It does not include friction discs, steel plates, Automatic Transmission Filter, band, gaskets, or any other component. Verify your full parts list before ordering.
- Classified under the D1-Hard Parts line, this sealing ring is a machined component designed to hold and seal under the hydraulic pressure cycles of the C6 unit, not a soft or molded seal.
- Single sealing ring, individual hard part. Item weight: 1 lb. No additional pieces are included in this listing.
- Before ordering, confirm the exact transmission code on your unit, the model year falls within 1970-1977, and that this sealing ring matches the specific circuit location you are servicing.
What's in the box
- 1 x Ring Kit, C6 Sealing
Compatible vehicles
- Fits LTD [70-75], Thunderbird [70-75], E100 1/2 Ton Econoline - Van [70-75], E100 1/2 Ton Econoline Club Wagon [70-75], E250 3/4 Ton Econoline - Van [75], E250 3/4 Ton Econoline Club Wagon [75], E350 1 Ton Econoline - Van [75], F100 1/2 Ton - Pickup [70-75], F150 1/2 Ton - Pickup [75], F250 3/4 Ton - Pickup [70-75], F350 1 Ton - Pickup [70-75], Ranchero [70-76].
| sealing ring kit c-6 (70-77) |
Default Title |
|---|