Wheel Size 98 Beaver Marquis

[JimDyer]

Does anybody know the wheel rim size and dual spacing fpr a 98 Marquis?

I am trying to replace my tires and to get the load capacity I need to know the rim size and dual spacing.   I can't find the info anywhere in the manuals, and the Monaco help line's answer didn't inspire confidence......

Thanks

Jim

[Keith Oliver]

Look on the wheel for its size.  I can't help with spacing, other than just using a tape measure.

[Gerald Farris]

Jim,
The wheel size is stamped in the inside of your wheels. You can read it on the rear outer wheels. Here is a chart for the dual spacing requirements.
http://www.accuridewheels.com/dual_spacing.pdf

Gerald

[JimDyer]

Hi Gerald,

I found the Accuride serial #28615 AIP and size 22.5 x 8.25 stamped on the rim as you said.  Going to the Accuride catalogue the Wheel Offset is 6.59" so the Dual Spacing is 13.18" .

I called Michelin's Tech Support Line and they told me that there wouldn't be a problem going with a tire requiring a minimum 13.2" dual spacing on a wheel with a dual spacing of 13.18"

I called Bridgestone tech support and they say there's no tolerance whatsoever, so don't use a R250F

So i guess I will get prices on the Michelin XZE2+ and XZA2 Energy and the Bridgestone R250F and see how much money the .020 is costing me.....

What do you think?

Thanks

Jim

[Gerald Farris]

Jim,
I do not know who you are talking to at Bridgestone, but I can not imagine that any engineer would say that there is absolutely no safety tolerance built into any specification. No tire fitment specification in the field can be held to a tolerance of two hundredths of an inch.

I was a suspension specialist in the automotive industry for years and the tolerance on wheels was higher than that. A wheel was allowed to have three hundredths of an inch of run out in it before we could replace it as an out of round wheel. Bridgestone does not hold it's tires to a specification that tight.

I have been running Bridgestone R250 tires in 295/80R22.5 size for four years on the identical wheels that you have with absolutely no problems.

Gerald

[JimDyer]

Thanks, Gerald. Without knowing the tolerances I was thinking exactly the same thing.

Back when I was an engineering student I went through the BF Goodrich plant in Kitchener, and I remember the balancing machines that formed the basis of their on-floor QC  program. All tires went on, and were trimmed to give a max of 1/2" runout each way. Those that couldn't be trimmed to meet that were scrapped.

What was fascinating was that the engineer leading the tour had them put on a michelin and it just sat there and hummed - no measureable runout at all!