4kscq wheel offset and wandering

[brv@chrysler.com]

     Leigh Anderson wrote:

     >"I looked up the proper offset for 15x7 wheels according to the
     factory 4KQ manual and its 45mm.  My Borbet Type H wheels from Tire
     Rack are 35mm, which might be enough to account for the wandering.
     Maybe some extra toe-in will help. Or get different wheels arggh."


     Leigh:

     Just went through this offset thing on my 5KCSTQ and found that the
     stock wheels 15x6 inch (your 4k would have 14x6 wheels I think, not 7"
     wide as you stated) have an offset of 45mm.  To compensate for the
     added inch of width on your 15x7 Borbets, the proper offset is 35mm.

     Think of it this way: take the extra inch and put half on each side of
     the wheel centerline. The stock offset of 45mm now is pushed out
     another .5 in or about 12.7mm giving a new theoretical offset of 57.7
     mm.  So to compensate for the extra width the offset must be REDUCED
     by 12.7mm leaving an ideal offset of 32.3mm.  Aftermarket wheels
     commonly come in 35mm offsets so that's what you got!

     The small change in scrub radius of 2mm will not cause the car to dart
     or wander but the wider tires you have on there will have a tendency
     to follow the road much more than the stock size.  however, it would
     probably be a good idea to alighn it anyway at a competent shop ,
     which if this list means anything, is difficult to find!!


     Best of luck..


     Brian R. Vinson
     86 5KCSTQ