I really like the 4.88's and 295.75.r16 bfg set up. Greatest ever for pulling a pop-up over the mtn. passes. With the auto tranny, I can't say I can really tell the difference wheeling, but on the pavement for sure and money well spent. (98-99 100's come stock with 4.33 gearing) My truck comfortably drives at 80mph. Slows to 65 pulling camper up to 10,000ft.
I can only assume an 80 would benefit from the same upgrade.
98 uzj100. Factory rear-ARB front locked 4.88's. ARB Bull, Warn 9000, Irbis rear bumper, Slee sliders and belly pan. OME t-bars w/863 rears, HID, XM