HUBCAP SPECS for 8 lug wheels
 

Just wondering the typical specs on 8 lug truck hubcaps and what the differences and applications are for each style. 8 lug, 6 lug, 5 lug,etc. Steelies, rally's etc. Pics and any insight would be greatly appreciated... Thanks guys and gals!:metal:

Re: HUBCAP SPECS for 8 lug wheels
 

You mean what is the diameter? 5-lug and 6-lug are the same...right about 10.5" and all 8-lugs are about 12". This is for outer nub type. Inner clip type are obviously different.

Re: HUBCAP SPECS for 8 lug wheels
 

Here is a picture of my son's 70 GMC with the 8 lug wheels and correct stainless hubcaps on it.

Jim

Re: HUBCAP SPECS for 8 lug wheels
 

Here's a great ref that someone posted in a thread I started a while back. This shows all the caps for early-mid 70's (but not rally wheel caps, sorry). Yellow bow tie are 73+, blue bow tie are 69-72. Not pictured are the different caps (with red bow tie) for 67-68.

Note that what appear to be some identical caps in the same pic are actually the 2 different diameters for 5/6 lug vs. 8 lug as mentioned above. Hope this helps. One nuance is to note (in the 69-72 blue bowtie pic is that the left 2 caps are a good depiction of the differences between 5/6 lug and 8 lug wheels. Upper left is 8 lug with a concave (bulging) center bowtie while the lower left is 5/6 lug with a convex (sinking) center bowtie. Same can be seen on the upper right and lower right of the same picture. Kinda have to stare at it for a second to see it, like one of those weird pics from the 80's... I do not see the same design feature in the 73+ wheels.

Re: HUBCAP SPECS for 8 lug wheels
 

This is a common misconception on '69 thru '72 GMC caps. Yours are the '73-'75 stainless editions, (no black center section). The correct chrome 69-72 is shown on this link .http://www.gmcguy.com/gmc_hubcaps_wh..._and_rims.html

Re: HUBCAP SPECS for 8 lug wheels
 

Thanks guys!!!!

Re: HUBCAP SPECS for 8 lug wheels
 

Not meaning to nit-pick this, but to just to clarify. Convex is "buldging" and concave is "sinking" , recessed or cupped. Convex is correct for the 69-72s.

Re: HUBCAP SPECS for 8 lug wheels
 

I finally located a set of these (painted variety) in a junkyard for my 3/4 ton. Any tips on how to repaint these? I see some tedious detail brush painting in my future, correct?

Re: HUBCAP SPECS for 8 lug wheels
 

Masking tape,Exacto knife and spray paint gives the closest to OEM look,since they used a stencil and spray. If you want tedious,try repainting the wheel cover centers. See that yellow ring? Yeah,that and the tiny bowtie need to be painted. Been there,done that.

Re: HUBCAP SPECS for 8 lug wheels
 

Thanks Tim. That makes more sense than a detail brush in my shaking hands. :lol:

Re: HUBCAP SPECS for 8 lug wheels
 

Yeah,maybe a brush would be good,but I was speaking from my blind in one eye can't see out the other shakier than a skunk tail point of view. :lol: