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79gmcc15 · 11-19-2004, 11:07 PM

hey guys, got a couple questions about tires. I HAVE to buy 2 new rear tires for my 79 and the ones I have now are 30 x 9.50 R15 LT's and I looked at the tag on the door and that says that the truck needs LR 78 x 15 C's is that the same? do they make the latter anymore? one reson is that Ive always suspected that my spedo was off, and I noticed that my odmiter is also off, because Ive checked it useing the mile markers and when it came to the same number on the od its ether been befor the mile marker or after it by a few 100 feet. and sometimes notices it run fast or slower. but this was going between 60-70 so I dont know if that makes a diference. Ive been told that the 30 x 9.50 's are a harder size to find. is this true? if so what is a good size to put on the back. I cant aford alot. around $100 per tire is about max. I've been quoted for a used pair of tires that in realy good shape that are a lill biger for 80 out the door. so that seems best for right now. its ok to me if I get biger in the back for now. I happen to like the rake stance anyway lol. thats what it is now I think. thanks for your help!

11-19-2004, 11:07 PM	#1
79gmcc15 Gettin It One Pice At A Time Join Date: Oct 2004 Location: everett, washington Posts: 2,688	tires hey guys, got a couple questions about tires. I HAVE to buy 2 new rear tires for my 79 and the ones I have now are 30 x 9.50 R15 LT's and I looked at the tag on the door and that says that the truck needs LR 78 x 15 C's is that the same? do they make the latter anymore? one reson is that Ive always suspected that my spedo was off, and I noticed that my odmiter is also off, because Ive checked it useing the mile markers and when it came to the same number on the od its ether been befor the mile marker or after it by a few 100 feet. and sometimes notices it run fast or slower. but this was going between 60-70 so I dont know if that makes a diference. Ive been told that the 30 x 9.50 's are a harder size to find. is this true? if so what is a good size to put on the back. I cant aford alot. around $100 per tire is about max. I've been quoted for a used pair of tires that in realy good shape that are a lill biger for 80 out the door. so that seems best for right now. its ok to me if I get biger in the back for now. I happen to like the rake stance anyway lol. thats what it is now I think. thanks for your help! __________________ RIP ELJAY Work In Progress 1979 GMC C1500 Trailering Special. Getting the truck done, one piece at a time. “You can tell a lot about a fellow’s character by his way of eating jellybeans.”Ronald Reagan “I don’t know the key to success but I know the key to failure is trying to please everybody.” Bill Cosby Last edited by 79gmcc15; 11-19-2004 at 11:10 PM.



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