84573-01K - Sonnax® GM Chevy Buick Cadillac Oldsmobile Pontiac 4T60 4T60E Oversized Accumulator Pin (Fits 1-2 & 2-3 ONLY) 1991-2011
Sonnax® Oversized Accumulator Pin
4T60 4T60E
GM Chevy Buick Cadillac Oldsmobile Pontiac 1991-2011
Fits 1-2 & 2-3 ONLY!
Sold As Quantity 4 Per Package
- Buy 5 for $11.35 each and save 5%
- Buy 10 for $10.76 each and save 10%
Sonnax® Oversized Accumulator Pin
4T60 4T60E
GM Chevy Buick Cadillac Oldsmobile Pontiac 1991-2011
Fits 1-2 & 2-3 ONLY!
GM 4T60 and 4T60-E units commonly display negative shift characteristics that can be traced to excess wear at the 1-2 and 2-3 accumulator piston pin bores. Slipping, flares, and soft or inconsistent shifts often result, followed by burnt 2nd and 3rd clutches. Extreme cases will cause a loss of 2nd, 3rd and/or 4th Gears. Restore hydraulic control and banish sloppy shifting by reconditioning the pin bore and installing Sonnax® oversized accumulator pin 84573-01K.
Salvages accumulator pistons
Oversized pin creates tight hydraulic seal with OE piston
Starter kit 84573-02K includes reamer for boring piston pin bore
Warning:
Sonnax® oversized accumulator piston and reamer kit 84573-02K is no longer in production. Check with your distributor for availability.
Symptoms:
Worn accumulator piston pin bore
Soft & inconsistent shift feel
1-2 Flare
2-3 Flare
2nd Slip
3rd Slip
2nd Clutch burned (GM)
3rd Clutch burned
No 2nd
No 3rd
Cause:
Excess wear at accumulator piston pin bore allows circuit pressure to escape.
Correction:
Recover hydraulic control and renew shift feel and performance by reconditioning the pin bore and installing Sonnax® oversized accumulator pin.
Sold As Quantity 4 Per Package
| Manufacturer | Sonnax |
|---|---|
| High Performance | No |
| Condition | New Aftermarket |
| Item Returns | This item can be returned |



