on this subject, why has nobody mentioned the BIG pinion bearing 9" under ford 1/2 ton trucks from 67, maybe earlier, thru the late 70's, early 80's. i have one in my 71 ford f100 4x4. it has 3.55 gear (if i remember right), 5x5 bolt pattern. they say with the bigger pinion bearing, the pressure is spread out more. makes for less pinion breakage. you can get different axle shafts for the bolt pattern of choice. shorten it up a little. that would work great for high power output tho. it has been almost 6 years since i messed with mine. since i been in the army, aint been able to get back home to it. it is parked at my grandparents. i built the motor in it and dyo'ed it at 440 tq and 426 hp. old fe block. it is a 4x4 with 33" tires and 3.50 or 3.55 gears. dont remember now. lot of pressure on them. snapped the pinion in half once. that was the stock one. then learned about setting the backlash/bearing preload when i burnt up the pinion bearing. lol. pinions dont like being sidestepped at about 3500 rpm with tall gear, tall tire. lol. aaahhh, to remember the days when you were a teen and didnt worry about breakage cause it was fun to rebuild.... dave stohler http://picasaweb.google.com/das24rules ____________________________________________________________________________________ Yahoo! oneSearch: Finally, mobile search that gives answers, not web links. http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list