Vibration at high speeds and broken Reverse friction plates occur in GM Powerglides when the poorly supported planetary ring gear moves off the transmission center line, oscillating out of control.
Ring gear stabilizer kit 25810-S2 installs easily on Sonnax bolt-together, 1.80 and 1.69 ratio planetary carriers. With proper support, the ring gear stays on-center, significantly reducing vibration and drag while preventing wear and short pinion gear stress.

Fits Sonnax 1.80 and 1.69 carriers
Reduces high-speed vibration and drag
Prevents damage to short pinion gear teeth

More From This Category

Motive Gear Axle Shaft, 1541 Manganese, 5x4.5 in. Bolt Pattern, 29.1875 in. Length, 28SPL, ForD AEROSTAR 1986–1997, Each

Motive Gear Axle Shaft, 1541 Manganese, 5x4.5 in. Bolt Pattern, 29.1875 in. Length, 28SPL, ForD AEROSTAR 1986–1997, Each

$200.31

Sonnax 3Rd Clutch Piston Kit, GM, 4T60-E, 4T65-E, Each

Sonnax 3Rd Clutch Piston Kit, GM, 4T60-E, 4T65-E, Each

$309.22

RTS OE Speedometer Gear, For GM, 700R4 4L60 TH350BOP, 18 Tooth Drive, Each

RTS OE Speedometer Gear, For GM, 700R4 4L60 TH350BOP, 18 Tooth Drive, Each

$51.03

Sonnax Bearing Kit, Ford, Cd4E 1992 & Up, Each

Sonnax Bearing Kit, Ford, Cd4E 1992 & Up, Each

$99.53

Sonnax Heavy Duty 4-5-6 Clutch Apply Piston Kit, GM, 6L80 Commodore VE-VF 6L80E, 6L90 Commodore VE-VF LSA Heavy Duty, Each

Sonnax Heavy Duty 4-5-6 Clutch Apply Piston Kit, GM, 6L80 Commodore VE-VF 6L80E, 6L90 Commodore VE-VF LSA Heavy Duty, Each

$253.17