Chevy & GMC Vans

Hi All,

I have been reading and digging and keeping my eyes peeled.

Of course people are running 15's, I had a set on my '93. And I recently saw a guy running 30x9.5 r 15's on steel wheels on a '99 I think. But then recently tried to fit up a set of 16" tahoe wheels that would not fit over my rear caliper so I am hesitant to pull the trigger on the 15's without a solid confirmation of the fit.

Assuming that all the 2nd generation vans have the same rear brakes, I guess the steel wheels have a thinner cross section which allows the 15 to fit over the caliper?

This is wheel I am looking at:
85 SOFT 8 Gloss Black wheels by Vision®. 15" x 7", -6 Offset, 6x139.7 Bolt Pattern, 108mm Cente

Thanks!

I haven't tried, but if 16s didn't fit, it seems unlikely that 15" rims will.

blinkibus wrote: Of course people are running 15's ... Assuming that all the 2nd generation vans have the same rear brakes,

You know what they say about assuming right?
https://en.wikipedia.org/wiki/Chevrolet_Astro

blinkibus wrote: I guess the steel wheels have a thinner cross section which allows the 15 to fit over the caliper?

Some came with factory mags too, so I don't think the material matters.

You can use a tool like this to give you an idea
http://www.rimsntires.com/specspro.jsp
You should read the "Wheel And Tire Information" sticky post in this section, and I see other posts with the exact same question you asked.

blinkibus wrote:This is wheel I am looking at:
85 SOFT 8 Gloss Black wheels by Vision®. 15" x 7", -6 Offset, 6x139.7 Bolt Pattern, 108mm Cente

The stock wheels have an offset of around +18mm, so -6mm has a lot less room for brakes.

I bought some beautiful alloy wheels from a guy once. They had all the right specs in the ad. I can't remember why but I had one with me as a spare one time when my tire blew out deep in the wilderness. Of course it didn't fit. The guy didn't know what he was talking about and posted the wrong info. (or was just trying to offload them)

Always test fit and don't forget to leave room for the slider.

Hi,

The 03 to 05 Astro has rear disc brakes and the front disc are bigger brakes.
You need 16" or 17" rims.
You may want to find some Tahoe Z71 wheels which are 17" or late model GM 16" wheels to clear the brake caliper.

I would stay with GM OEM wheels. There is more testing and product safety in Original Equipment Manufactures , OEM, equipment.

AP

I have Cragar Soft eights on my 96 Safari. 15-8. I think they have 4" offset. No problem with front brake calipers.

OK. I found a thread on the other forum that gave me the info I needed.

2003 and up vans have larger brakes that need the 16" wheels that they came with, which makes a lot of sense.