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Sonnax 28131-FRK

Replacement Friction Kit 1.58 Ratio

Sonnax 28131-FRK


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Estimated ship date 03/27/18 if Ordered Today
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Sonnax 28131-FRK Replacement Friction Kit 1.58 Ratio $85.85
Replacement Friction Kit
  • 1.58 Ratio

  • Sonnax 28131-FRK Details

    Replacement Components

    • Friction Plates (7)
    Not for use with OE reverse clutch pack.

    Replacement friction kit 28131-FRK is a service kit with seven friction plates for the increased active radius reverse clutch kit used in Sonnax Powerglide 1.58 ratio planetary assembly kits.


    Manufacturer's Part Number:

    Gear Sets

    Sonnax planetary gears are a big step up from standard case-hardened and tempered gears. Each gear set includes a flanged sun gear and a ring gear. The flange is machined from a billet, not a stamped piece. It is broached and matched to the sun gear for a precise press fit that does not require welding.

    Planetary Assemblies

    Planetary assemblies come in various configurations for different build requirements. The output shaft is available in the OE-length or short length and has a drum flange tooth profile which is 12-tooth (OE) or 24-tooth (fits Sonnax's 10-clutch drum). Units are fully assembled with a rear sun gear bearing upgrade and OE or steel-backed, PTFE-coated thrust washers.