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Mar 7, 2001 | 10:02 PM

cypress_303

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Junior User

Joined: Feb 2001

Posts: 72

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From: Canada

Big meats

I have a '79 f-150, does any body know how big of a tire you can put on with out a lift, it's obvious i will need off set rims, but i would like to put 38" thornbirds this summer, but if they won't fit i have to put on 35"s, or buy a 3inch body lift, but hey it's all a big dent in my wallet.
thanx

Mar 7, 2001 | 10:10 PM

melovefords

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Joined: Mar 2001

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Big meats

I have a 91 F150 and I went from the stock LT/235/75R15 to LT/285/75R16 and it fit just fine without a lift, I don't know if this helps you or not. I think these are equivelent to a 33 inch tire.

Mar 7, 2001 | 10:49 PM

ur2big1997

New User

Joined: Mar 2001

Posts: 5

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Big meats

i had a 79 ford it had a 6" lift and a 3" body lift.I ran 40" gumbo monster mudders on 10" steel wheels.i could run 44" but really needed finder triming.without a lift i bet 31 or 32 max and that would be close.good luck

Mar 7, 2001 | 11:57 PM

tetraruby

Posting Guru

Joined: Mar 2001

Posts: 1,494

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Big meats

If you don't do the lift...I've got 31's on my stock 15" rims. There's no problem on a '79 F-100. Handles well. Any bigger and you might lose turning radius clearance.

Mar 8, 2001 | 10:00 AM

dre

Senior User

Joined: Oct 2000

Posts: 219

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From: Richmond USA

Big meats

I have 31"x11.5" on my 78' F-150, with a 460ci setting on top
with small block coil springs.
No problem, big bumps no problem.

Dre'
1978 F-150, 460ci(750cfm,Edelbrock Performer,Dynomax Ceramic Coated headers,etc.)Auto-C6,3:70.1 - 9" Posi.

Mar 8, 2001 | 12:13 PM

dzjammer

Senior User

Joined: Dec 2000

Posts: 435

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From: Nebraska Farm

Big meats

I put 33's on last spring, mounted on Weld aluminum 15X10 wheels with stock backspacing and NO LIFT. The tires stuck out the side too much so I had to put fender flares on to save my paint. I have had no problems with them. If your not doing any rock crawling they work. The only other mod I did was spacing down the bumpstop so the tires wouldn't come up into the fenders under a heavy load. I used a 3x4 piece of steel tubing and bolted it in place of the rubber stop (which was gone on mine anyway).
Dave,
79 F-150 4x4, 390 w/C6, Edelbrock carb, 33X12.50 never will be finished.

Mar 9, 2001 | 12:03 AM

blaxuede

Senior User

Joined: Feb 2001

Posts: 180

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From: Powell RIver Canada

Big meats

I Run 33's in my 79 f100 I have a 6 inch suspension lift but 33's are still cuttin it close

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Mar 9, 2001 | 05:41 AM

77_F150_4x4

Elder User

Joined: Feb 2000

Posts: 775

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From: Temperance,MI

Big meats

I have no lift on mine i run 32x11x16.5 gumbo mudders in front and 32x18x16.5 tearra tires in back. I can fit 33s in there without problems.

Curtis
77_F150_4x4 aka
"The BeAsT"