im going to get a 6 1/2 inch lift with 35 inch tires on my 98 extended cab short bed f150? If i dont regear will it screw anything up besides the acceleration. will it burn the transmission down quicker?

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1998 extended cab
Silver
4.6 v8

Future Mods:
6 1/2 inch fabtech lift
35 inch bfg all terrain tires
3 inch body lift
billet grill
clear corners
euro tail lights