Originally Posted by hutch1200
Do R&P gears have to be a matched set, wear wise, like a dizzy gear and cam gear? Meaning they have worn in together.
I ask this in all sincerity because the thought just came to me. I just went from 2.72s (2.73s?) to 4.10s so this is just for my personal knowledge. And this place is where I get to pick the best info.
Yes, they are a matched set from the factory. They actually lap them together like you do valves to valve seats for better wear and less noise. There is more to it than that, but that is the Cliff's Notes version...
I like that Power-loc system, makes sense. I want to know about the Hydro-Loc system like was used in the front of some of the Grand Cherokees. They were open until one wheel spun about 5 times compared to the other wheel, and a hydraulic pump would compress clutch disks and limit wheel spin. I think they'd be the best bet, but I cannot remember what is under the Grands.