before this happened, sometimes in the OD gear, i could here like a grinding noise. when i let my foot off the gas, it would go away. hasnt done this yet since ive done the work to it. it feels like when it shifts in OD, the RPMs are about 4000 more than before. for example im going 55-60 mph, the RPMs would be around 1300-1400, now its around 1700-1800. havent driven it on the interstate yet. so cant tell u how it rides at high speeds.