360Rocket

Wow I love this detailed response and your help. My width measurements were from Outer sidewalk to outer sidewalk. We’re you measuring from the bare hubs? Also I believe that the rear 12 bolt axle is from a 67 GTO and I know I went to swap axles from a 68 Chevelle 12 bolt the Chevelle axles were longer by over an inch each. I’ll check air pressures as well. Do you know the widest tire size I can go with in the rear by chance? I’ll get you the backspacing when I get back home. Thanks for your assistance.

Frosty I just had an alignment put on it before the tires and wheels went on These are Khumo Ecsta tires 255/45/17. I'm going to swap them for NITTOS since these tires are old. Gonna go with a taller and wider tire in the back as well and then drop the rear back down with a set of 2" lowering springs. I just recently got back on FACEBOOK thanks to work and I have been killing it on Pontiac Parts in the MARKETPLACE.

So I recently bought a wheel and tire package just to change the look and performance of my GTO by going to a 17" aluminum wheel with a 255/45/17 tire and I expected a ride difference but not as big of a disparity as I am experiencing. The ride is stiffer, I expected that. There is more road feel I expected that. I had 15x7" R2's with a 245/60/15 almost identical in size. The difference I didn't expect was the car didn't track and it seemed more effort was required to keep her in a straight line she seemed to wander all over the road. Just out of curiosity when I returned home I measured from outer edge of tire to outer edge of tire both back and front and the front was 73" wide and the rear was 70". My old set up had all the same wheels with all the same backspace as the new wheels are but I didn't experience the "tracking" issue before......any ideas? Thanks in advance.

Dude I kinda nervous about placing it and placing it off center. That’s a lot of landscape of 3MVHB. It’s gonna be tough without doing it in sections cause you can’t do it in sections oh and by the way there is over hang that you have to bend this aluminum plate down to cover the underside of the gauge panel.

Yessir

Never been a fan of the woodgrain. Here is another project I am in the middle of....

Yeah busy busy with a new job and barely any free time to speak of. But the extra money means more upgrades.

Finally found a wheel at a price I was comfortable with. Wanted something a bit modern (17") but with its beginnings in a period correct start in life. I am looking to go a bit taller and wider in the back and I've already got 2" lowering springs to mount up as well. Without further adieu.......

Frosty would you think that a 10" rim would fit without rubbing in your wheel well?

Got a slight header leak to button up but thought I would do a quick walk around since its been a while since hearing her run. The upgrades have really turned this hot rod into a joy to drive. IMG_3674.MOV

So 15x7 fronts, 15x8's rear sir? That looks awesome!

some of the small details done painted and marked driveshaft. Found the original markings under several layers of grease, dirt, and paint. new rear 3:42 gears and diff cover. New stainless trans cooler lines and coated long tube headers.

Yeah that’s my kind of dyno run. The good ole butt Dyno. .

So today I picked up my car and I now finally own the street beast I thought I bought 3 years ago. Its a night and day difference driving experience. I had to eventually get off the gas as this car will burn them now as long as you keep your foot on the loud pedal. here's proof that this car is a blast to now drive. I am extremely happy with the outcome and performance.