I got a nine bolt i need 4.10 gears for it.Also they are 3.23 gears in there now i need to know if the 4.10 will directly bolt to the carrier.Its my first nine bolt.

Also some links for purchase would be nice if they have any by now i know a couple years ago you couldnt find them and there really expensive.

 

im not sure if the 4.10s will cross over but randys ring and pinion has upper ratios or you can try miles at www.9bolt.com. i'v orderd from him and hes fast on service but slow on E mail responses.