08/05/2026
Brett Bunyan Broke his first OEM wagon differential running 8.5 seconds at the 1/4 mile on his RSX.
Shortly after swapped to a PFT ring and pinion and broke multiple world records for the RSX platform, many low 8 second passes, followed with many 7 second passes in the last 2 years with the PFT ring and pinion.
After all this abuse the gears finally gave and we have sent him a replacement 100% free of cost even after the 1 year warranty had already expired, had it been an OEM wagon diff he would have to rebuy everytime a ring and pinion broke.
Thank you for pushing the limits Brett and helping us find a limit to the 1,400whp gearset on a heavy chassis.
Based on the photos it shows the pinion was set slightly too deep, I will be assisting with the new ring and pinion set up and confirming the pattern once installed.
If more is needed for the next level, we will be making a quad serial Pro-drag ring and pinion set for 2,000HP+
Powerfactorytuning.com
