a ?
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a ?
I have a 1989 F250 with towing, has 16.5 8 lug wheels and i have been having problems getting new tires 31x10.5 on it. as alot of you probly know 16.5 are not as easy to get as they once was i could go to 16 but i want to keep the rims i got back when ( almost 20 years ago ) lol. i have got a place i can get some 33x12.5x 16.5 but i am worried aobut the mpg i will get with them already run around 10 on my new motor a bit over 5000 miles on it sence we put it in. and 2 eye balling it looks like the 33s will fit but i wont be sure till i see em on. anyone know if they will fit without rubbing and how much they will bother my porfomance? thanks
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From: tom bean tx
my 33;s do rub a little in full turn, but i am fixing to get 36 humvee tires to replace them with. i do not notice it that much, i mean really how many times do you turn that tight...and yes 16.5 are getting hard to find............
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Finaly got around to getting the 33x12.5s on. They look Great drive great. Yes they do rub a bit at full turn. anyone know a good place to get wheel spacers for the 8 lug? and is the 8x 170 the right one to get for the 89 or is that the size for the newer trucks ?
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Joined: Jul 2006
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From: Central PA
I used to run them (16.5) on a 78 For the cost of the 16.5 tires when I could find them. I changed rims . Didn't want to they were the old hurricain type. But the cost and limited sizes was getting crazy . good luck with 33"s
Fleet Mechanic
Joined: Sep 2003
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From: savannah,ga
ME you need 8 lug on 6.5"
the 170 mm is the new truck size
the cheapest place I found for spacers is pep boys (ugh)
had to special order hear and with P B that is a night mare
had to have them on my van to run closed lug nuts
the 170 mm is the new truck size
the cheapest place I found for spacers is pep boys (ugh)
had to special order hear and with P B that is a night mare
had to have them on my van to run closed lug nuts
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Joined: Apr 2005
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From: covington wa.
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Thanks for the info guys. 
and yes 16.5 are geting few and costly but i really didnt want to give up my old rims. and its a good reason to add a couple inches up along with the spacers
and yes 16.5 are geting few and costly but i really didnt want to give up my old rims. and its a good reason to add a couple inches up along with the spacers
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