I could be wrong myself. This is what I have. PISTON (OS 0.50)
(OS 0.50) I just did the gear reduction in mine with the parts from a 300 and man what a difference. With my 29's it feels just like I got the stock 25's on it. With having the big lift and tires it'll pull the front wheels off the ground a good 8-10 inches but it runs out of first gear pretty quick but I'm very impressed.