You might want to check with the manufacturer to see how much difference is
acceptable. I have an all-wheel drive car, and there is a specification
regarding how close to identical the diameter of each tire must be.
But since you've only got two driven wheels, an spare that doesn't match the
rears could always be put on the front, and one of the fronts moved to the
rear, in a pinch.
Probably better to have the right size spare...
----- Original Message -----
From: "wayne osborne" <wayne@chevytrucks.org>
To: "Jim Wilkerson" <Jim.Wilkerson@sas.com>; "Gary Perry" <glperry@fwi.com>;
<oletrucks@autox.team.net>
Sent: Tuesday, September 23, 2003 5:53 AM
Subject: RE: [oletrucks] Old Tire Sizes
Jim,
Seems to me the rule of thumb should be to use the same diameter tire
for a spare regarding a posi rear. Might be hard on the clutch pack in a
limited slip to run any distance with mismatched set. A true posi, where
there is no slip wouldn't be able to handle it very long as you'd probably
bust an axle or the differential before long. I would personally get the
same diameter for a spare.--wayne
At 02:49 PM 9/22/03 -0400, Jim Wilkerson wrote:
>Thanks Gary! And Thanks to Bob Chansler also. According to a tire size
>calculator I found the closest to the original 6.50 x 16 is a P215R80 - 16
.
>
>What is the 'rule of thumb' for vehicles with positraction and running
>different size wheel/tire combos on the rear? For example, is it
>absolutely necessary that the spare tire is exactly the same diameter as
>the regular tires? The same circumference? Or is it OK to run a
>completely different size - for short distances? If yes, what is a short
>distance?
>
>Thanks in advance!
>
>***********************************************************************
>Jim Wilkerson
>***********************************************************************
>
>
>-----Original Message-----
>From: Gary Perry [mailto:glperry@fwi.com]
>Sent: Monday, September 22, 2003 1:38 PM
>To: Jim Wilkerson; oletrucks@autox.team.net
>Subject: Re: [oletrucks] Old Tire Sizes
>
>
>I don't know for sure, but think you need 80 or 85 series tire to be that
>tall. Also think only a 195 or such narrow tire to stay orig looking.
>Myself would get wider and smaller diameter, probly for better ride.
>Speedo may be off, but So What, I say!
>
>G. L. Grumpy's
>Old Iron Ranch
>Huntington, IN 46750
>AD trucks and MM tractors
>----- Original Message -----
>From: "Jim Wilkerson" <Jim.Wilkerson@sas.com>
>To: <oletrucks@autox.team.net>
>Sent: Monday, September 22, 2003 12:19 PM
>Subject: [oletrucks] Old Tire Sizes
>
>
> > Does anyone know what the modern tire size equivalent would be for the
>original 6.50 x 16 tires that came on the '53 Chevy AD trucks? Assuming a
>radial, I want a tire with the same diameter and approximately the same
>width. i.e. P205R70 -16 or LT20575-16 or ????
> >
> > Thanks.
> >
> > **********************************************************************
> > *
> > Jim Wilkerson
> > ***********************************************************************
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
Wayne Osborne
http://www.chevytrucks.org
http://www.chevytrucks.org/wayne
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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