4L60E Sprag Clutch 1986, remanufactured and ready to install. Fits the 4L60E. Ships fast from the USA.
This listing is a remanufactured sprag clutch for the 1986 model year, and it is worth being clear up front about which transmission that means. GM did not build the electronic 4L60E until 1993. In 1986 the same four-speed overdrive family was the hydraulic 700R4, later renamed the 4L60, and that is what sits behind a 1986 Chevrolet C10 or K10 pickup, Camaro, Corvette, S10 Blazer or Astro with a factory automatic overdrive. The forward sprag in that unit is the part this listing replaces. If your 1986 vehicle will not pull in Drive, or slips and flares leaving a stop, this is the part to look at. It comes with a 1-year warranty and ships from the USA.
The sprag lives inside the input drum. The forward clutch turns its outer race, and its inner race drives the input sun gear. In Drive it locks and carries engine torque through first, second and third. When the transmission upshifts to overdrive, or when you lift off the throttle, the input sun gear runs faster than the forward clutch and the sprag lets it freewheel instead of binding. Manual Low and 2 add the overrun clutch, which ties the sun gear directly to the drum and gives you engine braking. That overrun path is why a vehicle with a broken sprag can still crawl in manual ranges.
A 1986 unit is hydraulic, so there are no solenoid codes to read. Shift timing comes from the TV cable and governor, not a computer. A misadjusted TV cable causes low line pressure and slipping that can mimic sprag trouble, so check it first.
Do the range test with the parking brake set: Drive, then manual 2, then manual 1. If only Drive fails, the sprag or its races are the prime suspects. If no forward range works, the forward clutch, its piston or the input drum seals come first. Once the unit is out, hold the drum and turn the sun gear shaft by hand; a good sprag spins one way and locks the other. Our guide to 4L60E sprag and roller clutch failures explains how to tell a failed forward sprag from a slipping low roller clutch, which causes a different no-first-gear complaint. The input housing and sprag failure checklist lists what else to inspect in the drum.
The listing fits the 1986 model year. The early 700R4 received a series of internal updates through the 1980s, so match the part before you install it. Count the elements and measure the races on the sprag you remove and compare them to this one. If your transmission has been swapped or rebuilt with later parts, the internals may not be original 1986 pieces. Send us the vehicle year and VIN, or the transmission ID tag, and we will confirm. If your drum takes the later 29-element style, the 4L60E forward input sprag, 29-element is the match. More parts for this family are in our 4L60E and 700R4 parts collection.
| Fits | 4L60E 1986 |
| Part type | Sprag Clutch |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The electronic 4L60E arrived in 1993. A 1986 GM car or truck with a four-speed automatic overdrive has the hydraulic 700R4, the same family later called the 4L60. This sprag is listed for that 1986 unit.
In manual Low the overrun clutch locks the sun gear to the input drum and bypasses the sprag. If only Drive fails, the forward sprag or its races are the most likely cause.
It is listed for 1986. Later units can use different sprag element counts and race sizes, so compare with your old part or send us your year and VIN. Later units usually take a 29-element sprag.
It originally used Dexron II, which has been discontinued. Dexron VI is GM's current automatic transmission fluid and is what you will find on the shelf today.
Yes. This remanufactured sprag clutch has a 1-year warranty.
