Nitto DR's on stock Trans Am wheels wanna see!!!
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Also your are right about the tire tread, but thats at full pressure. At the track or even aired down on the street they do show wear almost to the edge of the treads
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Were on the car till they were done,(Dec '08, thru Oct.10,09 which was my last trip driving to the track and racing with them).
I've been fortunate enough to make a few Finals in the PBIR Challenge Series, and I drive my Formula approx. 120 miles roundtrip to the track.
They were on the car for about 4000+ miles, and I went & raced the car 9 times since putting them on last January.
This is not to pat myself on the back, Just letting it out there, that these tires had full footprint at the track with 19-20lbs w/best 60' at 1.66-1.68 range.
Once on the Street I drove them allover and at highway+ speeds and eventually put them back to a 25-26 lbs.
Footprint and wear were even.
They're done as I mentioned, but still on the rims, tho off the car until I buy another set if anyone wants to see them.
No Problems & Car handled great.

Btw, I believe these OEM SPEEDLINE wheels are 9" wide.
Last edited by RapidRick; Jan 26, 2010 at 09:08 AM.
Stuffing a tire on a rim has been going on for decades, and tho that doesn't make it right in most cases, once in awhile as a 315/35x17 Nitto 555R put on a 17x9 wheel, it does. And functions very well on the Pontiac T/A Speedlines rims.






