When hydraulic pressure bleeds past worn or cracked sealing rings, the automatic transmission loses the apply force needed to engage clutch packs cleanly, and shift feel drops before anything else shows up in diagnostics. This sealing ring set covers the A727 and TF-8 transmission for applications ranging from 1968 through 1996, and it addresses that specific failure point without bundling components you may already have on hand.
The A727, also catalogued as the TF-8, is a three-speed unit that stayed in production across a long model run, which means rebuild shops encounter it regularly in varying states of wear. Sealing rings in this unit live at the servo apply circuits and at the rotating drum interfaces where they are exposed to continuous pressure cycling. Once they take a set or develop cracks, no amount of adjustment elsewhere in the valve body recovers the lost pressure. Replacing them is a straightforward step, but only if the rings going in are dimensioned correctly for the bores they seat in.
REMCO has worked with automatic transmission components since 1991. Each order is assembled here by hand from individual stock. The box includes that parts list so the technician receiving it can confirm the count immediately.
This listing is for the sealing rings alone. It does not include friction discs, steel plates, gaskets, an Automatic Transmission Filter, or a band. If your rebuild calls for those items, they need to be sourced separately. Check the transmission identification code stamped on the case, verify the year of the application sits inside the 1968 to 1996 window, and confirm that sealing rings are the specific gap in your parts list before placing the order.
- Worn or cracked sealing rings allow pressure loss inside the unit, leading to delayed shifts and clutch pack failure - this set addresses that failure point directly.
- This listing covers sealing rings only. It does not include friction discs, steel plates, gaskets, Automatic Transmission Filter, bands, or bushings. Confirm what your rebuild requires before ordering.
- Sealing rings maintain hydraulic circuit integrity across the A727 and TF-8 unit, a design detail that directly affects shift timing and holding pressure in each clutch apply circuit.
- Contents: one set of sealing rings for the A727 / TF-8 transmission. Packaged weight: 1 lb. A parts list is included inside the box so you can verify what you received.
- Before ordering, confirm the transmission code on the unit, the model year of the application falls within 1968 to 1996, and that sealing rings are the specific component your rebuild is missing.
What's in the box
- 1 x Ring Kit, A727 Sealing
Compatible vehicles
- Fits Newport [62-70], Challenger [70], Charger [66-70], Coronet [65-70], Dart [62-70], Monaco [65-70], D100 1/2 Ton - Pickup [60-70], D200 3/4 Ton - Pickup [60-70], D300 1 Ton - Pickup [61-70], M300 1 Ton [63-70], W100 1/2 Ton 4WD - Pickup [60-70], W200 3/4 Ton 4WD - Pickup [62-70].
| A727 sealing ring kit |
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