Front/Rear Track Dimensions

[9675.0203]

Has anyone actually measured their front and rear track centerlines?

I have a '77 Palm Beach, and the 1977 operating manual states:
Track.....................Front - 75.28 in.
Rear - 82.12 in.

I measured mine and they are not what the manual states. They are:
Front 75.00 in.
Rear 82.75 in.

I have stock steel wheels, and 8.75R16.5 Michelin tires.

Would the Alcoa wheels have a different track width?

This was brought to my attention by the tires not tracking where they
were supposed to when I drove up on a ramp I built for maintenance. The
ramp was built using the "manual's" dimensions .. not much difference,
but enough to be noticeable.

Comments will be appreciated.

HR in Indy
9675.0203

 

[thomas g. warner]

Do you have exactly the same size tires on your coach as those used for the
data, ie; same series?

>In a message dated 10/10/98 5:59:29 PM Central Daylight Time,

>
> Has anyone actually measured their front and rear track centerlines?
>
> I have a '77 Palm Beach, and the 1977 operating manual states:
> Track.....................Front - 75.28 in.
> Rear - 82.12 in.
>
> I measured mine and they are not what the manual states. They are:
> Front 75.00 in.
> Rear 82.75 in.
> >>
>That's interesting. I also have a 77 Palm Beach and have never had the road
>wandering problems so many folks seem to have. Someone mentioned to me once
>that the 77 and 78s had a little different alignment. Maybe that is what it
>is.
>Justin
>
>

 

[9675.0203]

Yes, same size tires and and stock steel wheels. Tire size should not
affect tire track center-line dimension, as that is measured center-line
to center-line of the tires. A different wheel contour could affect the
center-line position and change the track dimension.

HR in Indy
9675.0203

====================================================================

Date: Sat, 10 Oct 1998 23:07:06 -0400 (EDT)
From: "Thomas G. Warner"
Subject: Re: GMC: Front/Rear Track Dimensions

> Do you have exactly the same size tires on your coach as those used > for the
> data, ie; same series?
=======================================================================


> Has anyone actually measured their front and rear track centerlines?
>
> I have a '77 Palm Beach, and the 1977 operating manual states:
> Track.....................Front - 75.28 in.
> Rear - 82.12 in.
>
> I measured mine and they are not what the manual states. They are:
> Front 75.00 in.
> Rear 82.75 in.
>
> I have stock steel wheels, and 8.75R16.5 Michelin tires.
>
> Would the Alcoa wheels have a different track width?
>
> This was brought to my attention by the tires not tracking where they
> were supposed to when I drove up on a ramp I built for maintenance. The
> ramp was built using the "manual's" dimensions .. not much difference,
> but enough to be noticeable.
>
> Comments will be appreciated.
>
> HR in Indy
> 9675.0203