Many OE supports in Chrysler 46RH/RE, 47RH/RE and 48RE units do not seal well against the case, leading to reduced lube flow to the gear train and consumption of pump volume. Sonnax oversized piston retainer kit 22754N-02K salvages damaged Reverse drums and maximizes gear train durability by preventing the loss of lube oil between support and case.

• Oversized diameter is ideal for damaged drums; installation requires turning the I.D. of the drum using a lathe
• Unique design features two sets of I.D. and O.D. grooves repositioned at key load areas improve oil delivery
• O-Ring improves case seal and prevents loss of lube oil
• High-quality aluminum alloy resists gauling for better wear resistance
• Kit includes two optional plugs for use in RE unit

For bores with excessive wear, Sonnax also offers oversized 4-spool switch valve 22771A-13. Both the oversized and standard size Sonnax valves will improve the timing and flow to the apply and release circuits.

• Valve controls TCC release oil venting during apply for a firmer apply and no shudder
• Stem length, spool spacing and exhaust timing have been improved to ensure quicker stroke and less valve bounce
• Drop-in Zip Valve™ installs quickly and easily

For applications where replacing the transfer case input shaft is not an option, see Sonnax heavy duty output shaft 22173D-HD.

• Larger, 29-spline diameter allows for increased cross-section to protect against breakage
• High-strength alloy balances the toughness required for shaft strength with the deep case hardness required for the one-way clutch race that is an integral part of the shaft
• The included New Venture 271/273 input gear is ready for install — no machining required

• Bore sizing tool 37000-02BST improves bore finish and removes flashing and ridges for smoother valve operation
• Stronger spring helps prevent valve binding

• Taller hub is made from a pre-hardened, chromoly steel forging for extra strength and wear resistance
• Increased wall thickness with lightening holes
• Will accept 10 .060" frictions

• Accepts five friction discs for increased load capacity
• Machined from high strength steel forging
• Precision machined splines and thrust surfaces
• Strong construction
• Lube hole pattern for reduced drag on friction discs in low gear

• New integrated circuit board
• Improved design over OE
• No-hassle direct replacement
• Remanufactured solenoids are 100% tested
• New Viton® O-rings

C3 clutches in Aisin AW TF-80SC and TF-81SC transmissions are applied in 3^rd, 5^th and Reverse Gears in conjunction with other clutch packs. As the C3 clutch control valve oscillates and strokes over time, bore deterioration results, which prevents proper hydraulic control of the C3 clutch pack. This can cause flares, slipping, erratic clutch apply timing, ratio codes, bind-ups, and burnt C3 clutches. Reconditioning the bore and installing Sonnax oversized C3 clutch control valve kit 39741-50K restores normal shift operation and feel by re-establishing the hydraulic integrity of the C3 circuit.

• Annular groove helps center valve in bore to reduce future side-load wear
• New spring matches OE calibration
• Hardcoat anodized aluminum valve combats premature wear