Look, I understand that tire section width will vary with wheel width for a given tire, but common sense should tell you that the exact amount of change will depend on the height of the sidewall and on the difference between the section width and the rim width. This can’t be a single number for ALL tires and ALL rims. In any case, my point above still stands. With my 6″ wide wheels and 205/70 tires, I have more than 1/2″ clearance to the fender lip.
My rims are 7″ inches wide whereas yours are 6″wide. The 8.43 section width is based on a 6.5 inch rim.For every 1/2 inch you add 2/10ths.That makes my section width 8.63.Anyone have issues with the inner part of the rim rubbing on the suspension?
Correct, and an extra 0.2″ of section width means all of 1/10″ wider on each side. I have waaaay more than 1/10″ of clearance to my fender lips.
Well that explains why yours fit no problem. I installed 16×7
What difference does that make? A 205 tire is still 205 MM wide (OK, give or take a little due to the rim width). My 205/70-14s are 25.3″ diameter and 8″ section width. 205/60-16s are 25.7″ in diameter and 8″ section width. My friend’s 215/60-15s are 25.2″ in diameter and just about 8.5″ wide, and they also fit fine.
well i have issues.just put on the 205s and i am rubbing on the passenger side and maybe 1/2 inch on driver side.
Well, you definitely don’t have zero offset wheels. Mine has 205s on the back and I’ve had no issues for eight years now. My slot mags actually have some negative offset, which pushes the tires closer to the fender lip – still no problems. Mine are 14×6 wheels; overall tire diameter is 25.3″.
Are you asking about a Powermaster alternator that looks like a generator?
If all you care about is changing to a alternator, I also used the bracket from a 1963 215. Both a 12SI and a CS130 will fit this bracket with no mods. I swapped the pulley from the generator onto the CS130. Use the CS130 from a 1988-1990 Cadillac Fleetwood with the Olds 307 motor, which has the correct mounting ears and is 105 amps.