31's on a pathy

[Daves94XE]

on the wd21's that came factory with 31's did they have raised body mounts or all done with cranked t-bars?

[nunya]

Same thing as the non-31 trucks body mount wise. Iirc they had the steering stops adjusted differently, and they go a different gear I. The tranny for the speedometer. And your bars are proably sagged out to begin with if they ain't been messed with in a good while.

[MY1PATH]

pathys with 31's came the same as pathys with other sizes. sometimes steering stops were ajusted.

Many shipped with 31's had a 17t or 18t spedo gear (depending on 4.3 or 4.6 gears)

But if they were upgraded @ the dealer (like my sport package in 89) the dealer usually DID NOT correct the speedo gear.

As a result there are allot of Pathys on 31+ out there running a 19t, 20t or 21t... speedo gear(235/75r15 and smaller tires(27"))

[tmoore4512]

Mine came factory with the 4.6 gears and 31's. When I put 235's on it for a short time it seemed to get better gas mileage, but the speed was way off.

 

As my1path and nunya already stated, body mounts are the same...

[silverton]

Your calculated MPG would improve a bit, since it was geared for 31's and you put a smaller tire on it, the odometer would show that you have traveled more than you actually have.