I'm installing a set of 4.10s into my '89 LX 5.0 Vert (AOD) and I'm not sure what else I need to get to complete the install. So far I've got the 4.10 ring and pinion(FRPP), a master bearing and install kit, a t-lok rebuild kit, and friction modifier. What else do I need? Will the white tooth speedo from Steeda.com help make my speedometer more accurate? Any help is appreciated.
