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cosvega76 wrote:I had used a 225/50-15 tire on my Vega in the past, but used a 15x7" Centerline wheel with a 4-7/8" backspacing and a 1/2" spacer - making it about a 4-1/2" BS. I currently run a 215/40-17 tire with a 17x7" wheel with a 4-1/2" BS. Anything less and you're limited to the diameter of tire you can run, or you have to jack it up to the sky. I like mine low.
Chuck
'77 is that the 5" Vega wheel or the "Ralley II" [aka the "GT" wheel]? I get 3 1/2" with the Ralley II, never measured a 5" wheel. I have to ask how are these giant "Back Spaced" wheels fitting as well, when I had [1982] P205/60R-13 Dunlap GT Qualifiers on my '76 I had to use spacers to stop the rubbing, Those tires were WAY BIGGER than my current 205's, tires were measured edge of tread to edge of tread, not bulge to bulge, I suspect this was left over from the Bias-Ply days to make upgrading easier(?). So either way your measurements are at least with-in reason of mine! I wouldn't surmise them to all be the same from that era, close was "good enough" , Harry1977astre wrote: My stock 13" have 3-1/4" bs unless I measured wrong
1977astre wrote:cosvega76 wrote:I had used a 225/50-15 tire on my Vega in the past, but used a 15x7" Centerline wheel with a 4-7/8" backspacing and a 1/2" spacer - making it about a 4-1/2" BS. I currently run a 215/40-17 tire with a 17x7" wheel with a 4-1/2" BS. Anything less and you're limited to the diameter of tire you can run, or you have to jack it up to the sky. I like mine low.
Chuck
how are u fitting 4 1/2 bs. that would rub the inside wall with mine my drum is 3" another 1-1/4" is the inside wall so 4-1/2" bs would put the rim on the wall. unless I'm doing it all wrong. my stock 13" have 3-1/4" bs unless I measured wrong
cosvega76 wrote:1977astre wrote:cosvega76 wrote:I had used a 225/50-15 tire on my Vega in the past, but used a 15x7" Centerline wheel with a 4-7/8" backspacing and a 1/2" spacer - making it about a 4-1/2" BS. I currently run a 215/40-17 tire with a 17x7" wheel with a 4-1/2" BS. Anything less and you're limited to the diameter of tire you can run, or you have to jack it up to the sky. I like mine low.
Chuck
how are u fitting 4 1/2 bs. that would rub the inside wall with mine my drum is 3" another 1-1/4" is the inside wall so 4-1/2" bs would put the rim on the wall. unless I'm doing it all wrong. my stock 13" have 3-1/4" bs unless I measured wrong
My mistake - I thought you were talking about the front wheels. For the rear, you'll need a 3 1/2" to 4" backspacing, depending on the size of the tire and width of the wheel. My car has flared wheel openings so I'm running a 17x8 with a 3 1/2" BS. There isn't a lot of room with the stock wheel opening, so my best suggestion is to mock it up and measure carefully. I did a lot of measuring before I decided on wheel and tire size with 17s.
Chuck
Chuck
1977astre wrote: ok well the rims that came on the car are 13x5 with a 3" bs. I live 2 blocks from basset racing wheels hq. they kindly did the measurement for me 4" bs will not work on the rear of my astre without the rim hitting the inside wall. my car must be weird
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