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| | | | Joined: May 2006 Posts: 92 Shop Shark | | Shop Shark Joined: May 2006 Posts: 92 | I have a 48 Chevy 1/2 ton. Everything is stock. What size tires should I buy for my 15x8" chrome smoothie wheels? I would like a lower profile but that will affect my top speed....looking for any suggestions. thanks | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | 255/70/15 would be a good choice, you won't want anything too low in profile as they don't have the load capacity to carry the weight of the truck.
Bill Burmeister
| | | | | Joined: Jul 2006 Posts: 707 Shop Shark | | Shop Shark Joined: Jul 2006 Posts: 707 | 15 x 8 are probly not original. 16 x 5 or 6 would allow you to run 235/80R16's and then you'd have a decent top cruising speed.
1951 3800 Be the change you want to see. -hotshoe
| | | | | Joined: May 2006 Posts: 92 Shop Shark | | Shop Shark Joined: May 2006 Posts: 92 | I dont want to go with a really wide tire. Would a 215/70 be good? Or a 215/60? | | | | | Joined: Jul 2006 Posts: 707 Shop Shark | | Shop Shark Joined: Jul 2006 Posts: 707 | Yes. But you'll lose road speed.
1951 3800 Be the change you want to see. -hotshoe
| | | | | Joined: May 2006 Posts: 92 Shop Shark | | Shop Shark Joined: May 2006 Posts: 92 | With a 60 profile, what top speed would I be looking at? How about with a 70 profile? Big difference? I might change the rear axle gear ratio later on..... | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Without knowing what tire size you now have and what your top speed is now, your question is impossible to answer.
Also, I would guess a 215 is too narrow for an 8" wheel. | | | | | Joined: Aug 2007 Posts: 1,082 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 1,082 | weltertm, i went from 235-75-15 to my current 225-70-15, and added about 200 rpm at 60mph. thats with a th350 3 speed automatic.
the 225-70's are right at 27 inches tall, and the 235-75's were about 28-28.5 tall.
hope this helps.
and if you look at my web album you can see before and after pics..
leonard | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | 215s will be way to narrow for an 8" rim, as well as being even shorter than a 235/255 tire with the same aspect ratio. A 255/70/15 comes out to a 10.5" section width and is right at about 28" tall, give or take a 1/4" either way depending on brand. A 235/75/15 would also be an exellent choice, but I wouldn't go any narrower than that with an 8" wheel. Another option would be a 30x9.50x15 C floation size, which will give a good ride and still keep load capacity. That's what I'm running, on a set of 15x8 Blazer Ralleys.
Bill Burmeister
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