GBotM Nov '17 - WIDE TIRES

[Kemper1976]

275/60/15 Drag Radials

 

[Dunn]

305/45/17's on a 9.5inch wheel. Rubs a bit going over bumps, next time I'll do 295s and I think it'd be perfect.

 

[Ace Burt]

Nice! What wheel backset, etc? Frame notch?

[/QUOTE]
What

 

[Qdub24]

Actually I had no intention of everyone whipping out the micrometers and getting into arguments about it. I basically was considering actual wheel width but hey this is fun too.

Sorry, I don't have pics of my car on the 22x11s

 

[Ace Burt]

315/35/ R17 on 17x 11.5" View attachment 75548 View attachment 75549

I am looking at putting 315’s on my notched frame/fender rolled El Camino. What backset, etc did you use on the wheels? I want to use the correct size wheels so I don’t have to run spacers or anything

 

[307 Regal]

Sorry, I don't have pics of my car on the 22x11s

Get some! I've never seen your Cutlass on anything but those steel wheels. Post it up some time.

I am looking at putting 315’s on my notched frame/fender rolled El Camino. What backset, etc did you use on the wheels? I want to use the correct size wheels so I don’t have to run spacers or anything

If I remember correctly he's using a C4 Corvette IRS rear end on his car, so I don't know if you can use his backspacing with a standard live-axel rear.

 

[Ace Burt]

315/35/ R17 on 17x 11.5" View attachment 75548 View attachment 75549

I am looking at putting 315’s on my notched frame/fender rolled El Camino. What backset, etc did you use on the wheels? I want to use the correct size wheels so I don’t have to run spacers or anything

Get some! I've never seen your Cutlass on anything but those steel wheels. Post it up some time.


If I remember correctly he's using a C4 Corvette IRS rear end on his car, so I don't know if you can use his backspacing with a standard live-axel rear.

Thanks, I bought the tool to measure everything it just hasn’t arrived yet. Mine has a standard width Ford 9” rear end with the UMI frame notch kit.

 

[Ace Burt]

Thanks, mine has the UMI frame notch kit with a standard width Ford 9” rear end. I ordered the tool to measure everything but that looked sweet and I was hoping to learn from what he did

 

[CWPottenger]

I am looking at putting 315’s on my notched frame/fender rolled El Camino. What backset, etc did you use on the wheels? I want to use the correct size wheels so I don’t have to run spacers or anything

The Specs on mine will not probably work for you. I have an independent rear end from a C4 Vette fabricated into my Regal. I do not have any frame notch at all. I am running GNX flares and the IRS is wider flange to flange then a std Gbody rearend, so my tires go outward to get the 11.5" wide rim in car. So if you used my specs the rims/tires would end up outside of your sheet metal.
Also because my tires move straight up and down without angular deflection of a solid rearend I can run tighter clearances to body and frame.

 

[Ace Burt]

The Specs on mine will not probably work for you. I have an independent rear end from a C4 Vette fabricated into my Regal. I do not have any frame notch at all. I am running GNX flares and the IRS is wider flange to flange then a std Gbody rearend, so my tires go outward to get the 11.5" wide rim in car. So if you used my specs the rims/tires would end up outside of your sheet metal.
Also because my tires move straight up and down without angular deflection of a solid rearend I can run tighter clearances to body and frame.

Ok, thanks. Great job, it looks sweet!