Remember, the cataloge says
"New wheels required. Distance from inner sidewall of inflated tire to rim
mounting surface cannot exceed 4 3/4" to avoid upper control arm
interference."
The reason they require the different backspacing is because of the knuckle
adapter that bolt in between the top of the knuckle and the upper ball
joint. It won't fit within the stock rims. If you measure from the
mounting surface to the edge of the rim your getting the backspacing of the
rim. They're saying the "Distance from inner sidewall of inflated tire to
rim mounting surface" If you have 3.75" of backspacing on the rim and run a
12.50 tire on an 10" wide rim, there is another 1.25" of tire on each side
of the rim. leaving you at the 4.75" max limit. You have to make sure the
rim is within the recomended widths for the tire. If you try to run 12.50s
on an 8" rim, you may be running into clearance problems.
>
>Date: Wed, 20 Oct 1999 15:48:43 -0400
>From: brian.duffey@intelsat.int
>Subject: DML: RE: Dakota Body Lift
>
>Hey Travis...
>
>To measure your backspace, remove one of the wheels and deflate the tire.
>Place the tire/wheel flat on the ground with the back side of the tire
>facing up towards you. Place a flat edge (level board, yardstick, etc.)
>across the rim (you may need someone to hold the tire down) you want the
>flat edge to contact only the rim, not resting on the tire sidewall. Once
>you've got that, measure from the wheels mounting surface to the bottom of
>whatever you are using as your flat edge. That will give you your
>backspacing.
>
>Reading over this, these make it sound a lot harder then it actually is,
>and
>I'm sure the list will correct me if I've missed something! Should take you
>about 15 minutes (depending on what you have to re-inflate the tire!)
>
>Now, get some of those pictures onto a website, so we can see what your DAK
>looks like!
>
>Duff
>'95 SLT 4x4 CC 318 4spd/OD - 3.55 LSD
>MSD 6AL - MSD Blaster Coil
>MSD 8.5 wires - K&N FIPK - F&B Stage I TBI
>
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