1989 4x4 factory stock rim/tire size

[TopDogg]

Anyone know the stock rim size on an 89 4x4? I am buying an 89 in a week and I am shopping for rims now. I know that they went to nothing but a 16" rim but I dont know when.


I want to get a set of 15x8 M/T Classic rims and 31-32" tires. I imagine they would work but need to know for sure. Many trucks with 16" wheels wont fit a 15" due to brake sizes and such.


So if you have an 88-89 or even a 90 please take a look at the sticker inside the door or glove compartment and take a look at the tire sizes. I would appreciate it.

[TopDogg]

I just learned the truck has 31x10.5x15 size tires now.

Seems I might be able to fit a 32" tire but then I would be geting wider also.


The tires now stick out to far with no fender flares.

So anyones stock size on ur 4x4 will help

[okie-chevy-man]

i have a 89 and the stock rims are the 16.5 inch. i have had 33x12.50 with no rubbing but i did take the torsion bars up a little.
http://files.automotiveforums.com/ga...php?photo=9892
be glad to help you any way i can

[TopDogg]

Well if I got the right info from looking around on internet I should be able to fit a 31" tire no problem and I can use a 15" rim on this year. I can install a 2" body lift and safely go to a 32" which is what I will do.

Backspacing on rims as a factory spec I found to be 4.625" in 15 and 16 inch rims. I will run a little less and add flares.

Time to go buy some YOKOHAMA GEOLANDER A/T+II tires.

[tommie99]

a set of 15 'in will fit with a deep off set but the fac.size is 16 in not 16.5

[TopDogg]

Yeah I figured the offset out. Summitracing had a link to find out any factory offset or backspacing. I listed it above. 4.625".


And I think some 89s did come with 16.5" wheels.

[okie-chevy-man]

i know for sure that these are 16.5 and they seem to be the stock wheels
http://files.automotiveforums.com/g....php?photo=9892