I am looking to upgrade to 4.88s so i can run 35s. to my knowledge nitro is the only company that makes a 4.88 ring and pinion for a Chrystler 8.25 am I correct on this? I am looking for suggestions as to where i should buy my gears for my front d30. and if anyone knows any other companys that make 4.88s for 8.25 would be awesome. Price is my number one concern followed by performance. thanks