Re: 4kq wheels offest

[Glenn Lawton <lawtonglenn@gsmai.com>]

Brian Paul Bressler wrote:
> How far out can I push the offset on a 4ksq without rubbing?

Grant Lenahan wrote:
> You should not intentionally change the offset at all.  A wider wheel 
> will not, in and of itself, increase the offset.  It will increase the 
> distance of the outside edge of the wheel (and the inside).  Offset 
> refers to centerline, and a change affects suspension geometry.

Michael G. Wachholz wrote:
> I just installed 15x7...40mm offset on a 87 4kq....205/50-15 size...
> just short of rubbing the fender (unrolled) on the outside and barely 
> missing rubbing...on the inside...40mm offset is as far as you can go

christopher_bender wrote:
> I would advise staying with the factory 45mm offset.  I run a 45mm 
> offset 15X6 wheel with 205-55-15 tires.  I like running these big 
> tires.  Perhaps with smaller tires, a lower offset MIGHT be ok.

Last week I installed the 205/50-15 P700zs on 15x6x35 wheels, and
I am pleased to report that even under drastic cornering there is
no interference. Well, ok, there was a touch on the black plastic
at the rear of the fenderwell, but I ground off about 1/2 inch, and 
now it's ok. WOW they fill out the fenders and look GREAT, and the
new cornering power (especially after Blizzaks all winter) is awesome.

Stock offset is 45, but if you change from a 14x6 to 15x7 with the
same offset, as Grant says above, then half of the width change goes 
inboard, and half goes outboard towards the fender.

Since one inch is 25.4mm, with a stock 45 offset, the 15x7
wheel would be (7-6)/2= 1/2 in = 25.4/2 = 12 mm more inboard.

If you change the offset to 35, then it moves outboard by 45-35 = 10mm
therefore 2mm inboard, and 23mm outboard. There is plenty of
room at the fender lip for this.

Glenn