Stock tires and gears for 1985. I have a set of 3.31s from a Grand Wagoneer that I'd like to swap in one day. I believe all FSJ pickups are 4wd. Ken Quoting tom jennings <tomj@xxxxxxx>: > On Tue, Jun 1, 2010 at 11:11 AM, Ken Ames <ameskg@xxxxxxxxx> wrote: > > > Yep, you don't want to be in a hurry. My 85 J10 has a 258 that's getting a > > bit > > tired even with just 135,000 kms (84000 mi). With 2.72 diffs it has to > work > > hard > > all the time. Most headwinds have it running a lot of throttle just to > keep > > 60mph. > > > > That's a bummer. It's all in the gearing; my 232-powered station wagon has a > 3.33? axle and runs 65 - 70 mph all day. Air-cooled BW auto trans. Fully > loaded hauling a camp trailer and krap four 3 people for a week it'll do > 60mph all day on the flat and level. it did that too with a Carter YF. > > 2.72 seems like a steep axle. Is it 4wd? Is the 4-wheel stuff that much of a > power loss? Maybe too-tall tires for that axle? > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20100601/a9cdc732/attachment.htm> > _______________________________________________ > AMC-list mailing list > AMC-list@xxxxxxxxxxxx > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com