Power By The Hour Performance is proud to introduce you to yet another innovative product. After working and racing with the 6r80 automatic transmission for years we found a weak spot in the forward planetary. In testing we found that by making a hub to replace the planet, we could also manipulate the gear ratio. Working closely with our tuning partners at Lund Racing we came up with the 4R200 hub.
By installing the 4R200 in your 6R80 you will be changing the load on weak links in the Power Gears (1-3). These weak links are commonly identified as the OD clutches, intermediate shaft, and the forward planetary. In the case of the 4R200, the factory foward planetary is completely replaced. Subsequently changing the gear ratio in the 6r80 all while keeping Overdrive, Converter Lock Up, and trans-brakes. The new gear ratio will help make launching even more consistent and keep the transmission in gears longer to help alleviate shift anticipation issues. The 4R200 is made of 7075 Aluminum.
4R200 GEAR RATIO 2.74 1ST/1.54 2ND/1 TO 1 3RD/.69 4TH(OD)
Recomended rear gear ratios for the 4R200 are 3.31-3.55 for 170-200mph top speed with 28″ tall tire. For 165-170mph use 3.55-3.73.
Installation of the 4R200 can be done by any qualified technician. There is no machining needed as it is a direct replacement for the factory forward planetary.
Custom tuning is required to get the transmission to shift as needed for the new gear ratio.
Lund Racing will supply a base file for 3 speed only and for SCT devices.
Consult your tuner or converter supplier for any needed updates to gearing or changes to maximize your performance with the 4R200.
4 = 4 SPEED
R = REVERSE
200 = CAPABLE OF 2000 FT/LBS OF TORQUE
MANUFACTURED PROUDLY IN THE USA!