GEAR DRIVE, PQx, DUAL IDLER, FORD 221-351W 1962-91, Quiet, Made in USA
Replace your timing chain with a PRW Dual Gear Drive Set. These dual idler gear drives require little or no rebuilt machining. PRW steel alloy gears add longevity. Axial needle and cage thrust bearings and or/silicon bronze bushings reduce friction. Unlike timing chains, gear drives will not stretch or wear prematurely under extreme conditions. Offset bushings allow for easy cam indexing and timing changes.
Benefits/Characteristics
- Easy to install
- SAE 660 bronze thrust ring
- Rugged gear drives offer high-precision timing
- Available in noisy or quiet (for most applications)
- Dual idler gears for more stability than single gear drives
- Offset bushings for easy cam indexing (for most applications)
- Fits under most stock timing chain covers (occasional minor machining may be required)
- Maximum Advance/Retard at Camshaft: 4 degree
- Maximum Advance/Retard at Crankshaft: 8 degree
