I'm about to do lockers so now is really the time I should decide whether to re-gear. I'm not going over 34" tires or messing with the KDSS. Will most likely end up around 33.5 with STT Pros. Is the general consensus when I get into mountains and hills and away from flatland the tranny will do a lot of searching for gears?? I'm getting pretty good gas mileage here in flatlandville even though I drive fast and punch it a lot. 15-ish in mixed freeway and city streets and 19-20 on the highway usually @ 70-80. That is pretty much the same as all the 4wd V8 trucks I've had....or actually a bit better with the cruiser in mixed driving. I guess 4.88's will drop my mileage a bit on the highway here...and then probably help in the mountains? Has that been peoples experience??? I'm doing aluminum skids to cut back on weight and also removing the 2nd row seat. When I build a storage compartment to fill in from my front seats to my Arb drawers I'll keep it lightweight also. Kinda talked myself into doing 4.88's already I guess... What RPM's will I see around 75mph?