Wilwood Forged Superlite Internal 4 Caliper - 1.88", 1.75" Piston Diameter, 1.250" Rotor Thickness - LH Rear Side Mount 20193YK The RDH is powered by

The RDH is powered by a lithium ion battery

25" Stroke Cylinder

Improved coil wire retention and longer creep path protects against high voltage arcing

Plated for an excellent finish

A500 (40RH/42RH/40RE/42RE/44RE) transmissions 1966-up

Wilwood Forged Superlite Internal 4 Caliper - 1.88", 1.75" Piston Diameter, 1.250" Rotor Thickness - LH Rear Side Mount 20193YK The RDH is powered byFSLI4 and FSLI4 ST calipers provide the pad wear performance advantages of differential bore pistons with the option for ultimate heat protection using Thermlock pistons in the ST models. Differential piston bores compensate for leading edge mechanical loading and temperature variances across the pad face to reduce pad taper wear in sustained high temperature applications. Thermlock pistons in the ST models block heat transfer from the pads and reduce