8HP Output Flange

HPR ZF 8HP Output Flange 
The HPR ZF 8HP Output Flange provides a strong and versatile solution for connecting a custom driveshaft to your 8HP transmission.
 
Installation video available [HERE]
Installation guidelines are available [HERE]
 
Designed and manufactured by HPR, the flange is CNC-machined from 4140 chromoly steel. It undergoes a dual-stage heat-treatment process, combining through-hardening for strength and ductility with case-hardening for increased surface hardness. Each flange is then polished and finished with a black zinc coating for additional corrosion protection.
 
The flange installs directly onto the factory ZF 8HP transmission output shaft and supports several common driveshaft configurations. It can be used with a heavy-duty 1350-series U-joint flange or configured for Toyota and Nissan four-bolt driveshaft patterns.
 
An integrated speed-sensor pickup ring is machined directly into the flange. The pickup teeth are compatible with Cherry-style magnetic Hall-effect sensors, providing a convenient transmission-output-speed signal for an ECU, transmission controller, dash, or data-logging system.
 
Compatible 1350 Yokes
Sonnax T3-2-119A aluminum yoke
Dana Spicer 3-2-119 steel yoke
 
Features
Direct fit for ZF 8HP transmission output shafts
CNC-machined from 4140 chromoly steel
Through-hardened for strength and ductility
Case-hardened for increased surface hardness
Polished and black zinc-coated finish
Integrated output-speed sensor pickup teeth
Supports 1350 U-joint, Toyota, and Nissan driveshaft configurations
Precision centering pilot for accurate driveshaft alignment
 
Flange Dimensions
Pilot Diameter: 2.75 inches
Bolt Pattern: 4 x 3.75-inch PCD
Bolt Spacing: 60-degree split
 
Included Components
HPR 8HP output flange
Genuine ZF output-shaft lock nut
NBR 70 O-ring, 27 x 5 mm
Four M10 x 1.25 Class 10.9 bolts
Four M10 washers
Optional Toyota/Nissan pilot spacer ring, when selected
Optional Speed Sensor 
 
Select the Toyota/Nissan pilot-ring option when connecting the flange to a compatible Toyota or Nissan driveshaft. The additional pilot ring is not required for standard 1350-series yoke applications.