I have a 1980 Z28. 350/350. I believe I have 15x8 front and 15x10 rear. 295/50/15 rears and I had 215/65/15 on front of my car that would just rub on severe dips/turns. wasnt thinking about this when I started replacing tires. after reading a bunch of tire size stuff, I went with BFG T/A 235/60/15.

You would think the Tire shop guys would have said something, but I see other guys running this same tire. I cant even make a slow sharp turn without major rub. I think the inside of the tire is hitting the rear of the front fender, secause once I get past a point the rub stops. I dont even want to talk about speed bumps or dips. I thought the front end of my car was about to shread my tires on the highway at 65MPH when I hit a big dip and felt like front wheels locked up.

Of course the tire shop wont do anything because I asked for the size and there are people using this same wheel/tire combo. when I look at the wheel in the fender well it looks like both front tires are back too far. Maybe 1 1/2" or less from tire to rear of well and 3"+ to the front.

The shop told me I can not adjust the position on these, but I can buy a new adjustable "??" to be able to adjust the wheel forward (alignment)

After reading a bunch of posts on here, I already plan on getting BBC springs and new shocks, etc.

Can anyone tell me what part the tire shop is talking about? I have searched for various front end parts, but have yet to find anything to adjust the wheels forward...

Am I just looking at wearing out these tires and going back to 215/65s?

ALSO on a side question, I am thinking of going to 295/60s on the rear to get about 2.25" more diameter (there is plenty of room in the back well. Does anyone have any rear tire suggestions?

Thanks to you all...

MrBob

BF Goodrich 225 60 15s will work out well in the front with no issues. When I had my 81, I had 235 60 15s in the front and I had some rubbing issues. The way I fixed this problem was ordering a set of spring spacers from the dealer. The front of my car was raised about 3/4 of an inch and the problem was solved.

Bob,
I answered this in reply to your IM but will post here too. Get shorter head bolts for the lower fender, it should help. Weak springs may be at fault also so changing them to BB springs are a plus. Get specs on the subframe measurment points to be sure all isn't moved rearward causing the little space in the rear of the front tire however it doesn't sound off to me. The guy suggested adjustable "A" frames ? You can adjust those forward and rearward a bit if it is needed but check the specs first.


Kev

I am running 225/60/15 with no trouble as well on my 80Z

Bob,
I answered this in reply to your IM but will post here too. Get shorter head bolts for the lower fender, it should help. Weak springs may be at fault also so changing them to BB springs are a plus. Get specs on the subframe measurment points to be sure all isn't moved rearward causing the little space in the rear of the front tire however it doesn't sound off to me. The guy suggested adjustable "A" frames ? You can adjust those forward and rearward a bit if it is needed but check the specs first.


Kev
Kevin makes a good point. When I added the spacers, the springs were new. I ordered Small Block Springs from Moog. Big Block Springs would have done the same thing. If you need springs anyway, order ones for a Big Block.