When the overdrive brake friction plate wears out on an A500, 518, or 618 automatic transmission, the result is a unit that slips into overdrive, delays engagement, or refuses to hold under load. This single GPZ friction plate addresses exactly that failure point, replacing the worn disc in the overdrive brake pack so the clutch can apply cleanly and hold through the shift.
What sets this plate apart from a standard replacement is the GPZ friction material itself. Standard paper-based frictions absorb fluid and release under heat; GPZ material is formulated to maintain its coefficient of friction at higher operating temperatures, which matters most in the overdrive brake because that apply happens at highway speeds where heat builds quickly. If the stock plate glazed or burned rather than simply wore through, returning to the same material would likely produce the same failure.
This listing covers one friction plate for the overdrive brake position. It does not include steel reaction plates, seals, o-rings, gaskets, Automatic Transmission Filter, or band. If you are doing a full overhaul, you will need to source those components separately. REMCO has been working in automatic transmission parts since 1991, and every piece that leaves the facility is checked against its parts list before it goes into the box. That list ships with the part, so you can confirm what you received the moment you open the package.
Fitment covers A500, 518, and 618 units from 1988 onward. Before placing the order, verify the transmission code stamped on the unit, the model year of the vehicle, and the engine it is paired with. The code on the case is the most reliable confirmation of fitment.
- Restores overdrive brake engagement on A500, 518, and 618 automatic transmission units, addressing slip and delayed overdrive apply caused by a worn friction plate.
- This listing is for one individual friction plate only. It does not include steels, seals, Automatic Transmission Filter, bands, or any other components. Verify your full parts list before ordering to avoid a second trip.
- GPZ friction material is engineered for higher heat resistance than standard paper-based frictions, making it the right choice when the overdrive brake sees repeated thermal stress during highway use.
- One GPZ overdrive brake friction plate. Article weight: 3 lb. Assembled and inspected individually at the REMCO facility before shipping, with a parts list included in the package.
- Before ordering, confirm your transmission code, model year, and engine combination. This plate fits A500, 518, and 618 units built from 1988 onward. Matching the unit code is the most reliable way to verify fitment.
What's in the box
- 1 x Friction Clutch Plate, A500 Gpz OD Brake 518 618
Compatible vehicles
- Fits Dakota [88-03], Ram 1500 [94-01], Durango [98-00], Grand Cherokee [93-04], Ram 50 [90-93], Ramcharger [90], W150 [89-93], W250 [90-93], D150 [89-93], D250 [90-93], D350 [90-93], B150 [90-94], B250 [88-94], B350 [88-94], B1500 [95-97], B2500 [95-97], Mighty Max [90-96].