Tire size for 72 lt1
Thread Starter
Cruising
Joined: Feb 2009
Posts: 14
Likes: 0
From: Austin TX
Tire size for 72 lt1
I have a 72 lt1 that I am restoring. The car came with P245/60R15 tires. I was installing the spare tire holder today and those tires seems to be too big for the holder to close. What is the correct tire size (original equipment) for this car?
Melting Slicks
Joined: Jun 2005
Posts: 2,293
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From: North of the Bay California
The stock spare is not full size...someone will chime in with the size.
Instructor
Joined: Feb 2005
Posts: 160
Likes: 3
The original tire size is F-70-15.
You can use a radial tire GR-70-15 these were used starting in 1973.
What is the paint and trim codes for your 1972 LT-1?
What are the factory options in your Corvette?
What is the VIN?
Thanks,
Drew Papsun
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
The car came with F70-15 size tires. These tires were 26.9" in diameter. If you want the same size tire as original you can buy reproduction F70-15 tires or the modern equivalent that is 26.9" in diameter; 215/70 15. Many of us like to use slightly (or not so slightly) wider tires. I have slightly larger 225/70 15s on my 68.
Thread Starter
Cruising
Joined: Feb 2009
Posts: 14
Likes: 0
From: Austin TX
The paint code is 979 (Targa Blue). The trim code is 404. It is a coupe with 4 speed manual, no A/C, adding PS & PB. The Vin is 1Z37L2S518850.
Vince
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
The F70-15 (factory original size) tires are equivalent to 215R70-15 tires by today's coding. However, most folks like a wider tire with the 60 series height ratio. All '68-72 cars will accept 235 width tires without rubbing. Anything wider may rub when at steering full travel. The tire tub should be able to accept 28" diameter tires [at least]. The tub can be lowered to accept wider tires by extending the inboard (2) 'hanger' bolts and the rear release bolt.
To my knowledge, all spare tires for '68-72 (at least) were full-sized tires.
To my knowledge, all spare tires for '68-72 (at least) were full-sized tires.
Last edited by 7T1vette; May 16, 2011 at 12:49 PM.
Thread Starter
Cruising
Joined: Feb 2009
Posts: 14
Likes: 0
From: Austin TX
The car came with F70-15 size tires. These tires were 26.9" in diameter. If you want the same size tire as original you can buy reproduction F70-15 tires or the modern equivalent that is 26.9" in diameter; 215/70 15. Many of us like to use slightly (or not so slightly) wider tires. I have slightly larger 225/70 15s on my 68.
Vince
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As stated above, you can store the 245-60 R 15 in the tub by lowering the bolts. If not already there, get the proper size nut to fit the front bolts for the tub support, then when the have been lowered enough to get a wider size tire in, run the nut up and they will stay where you put them
I ran the 245 like this for years with no problem.
I ran the 245 like this for years with no problem.
