when i kept blowing my 80a fuse in my truck it turned out to be that my alternator wire was grounding out. check the wiring going to the alternator for any tears in the insulation and make sure you have all the grounds that your supposed to have connected, connected haha. i went through about 4 fuses before i found out where my problem was. so good luck.

87 22R PU, 2? body lift, 33? BFG muds, 4.88's, F&R Lock-Rights, Rancho Shocks, EB's Street RV Head w/ 268 Cam, LCE Header, 2" to 2 1/4" exhaust, Flowmaster 50 series, Magnaflow high flow cat, complete Herculined SR5 interior, V6 BB, MC, and calipers.