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Old 02-21-2005, 04:32 PM   #1 (permalink)
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67-72 tire fitment

What size of tires are you 67-72 guys running?, with how much lift? Will 38"x14.50"s fit with a 6" lift or is 8" needed? I would kinda like to see some pic's if anyone has any.
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Old 02-21-2005, 05:34 PM   #2 (permalink)
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6" will be fine, I run 6" with 39.5" IROKS. Just bust out the sawzall and start making them fit. I don't have pics right now but I am someone else will. 8" is way too big
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Old 02-21-2005, 08:15 PM   #3 (permalink)
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I don't intend on using a sawzall.It is almost totally rebuilt. I want to start with a nice truck and have no problem wheeling it hard but I don't want to cut up new sheetmetal. I was just curious how far I could go without a saw and 5 1/2"-6" of lift. I am just thinking that 35"s are a little small.
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Old 02-22-2005, 10:07 AM   #4 (permalink)
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when my truck had a 4" with 35's i thought it looked too small and they stuffed fine. if you want 38's do the 8"
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Old 02-22-2005, 10:15 AM   #5 (permalink)
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I currently have a 4" and 33"s.Looks kinda dumb. I have some 1 1/2"-2" shackels to give almost 6".I was afraid the 38"x14.50"s would be a little big.
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Old 02-22-2005, 07:18 PM   #6 (permalink)
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6" will get you on 38's but you'll chew up the tires when turning over rough stuff or flexing. To get the best fit you'll want to relocate the axles to the center of the wheelwells. Front needs to go forward 1-2" and the rear needs to go back about the same amount. Also you will have to radius the front of the rear wheel opening..
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Old 02-22-2005, 07:31 PM   #7 (permalink)
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I know its prolly too big for your tastes, but heres mine on 38s, with 14" in the front, 12" in the back, ill level it one of these days, lol.

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Old 02-22-2005, 08:35 PM   #8 (permalink)
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So some 37"x12.50" should work well with 6". I'd like to go bigger but I haven't gotten around to getting a nv4500/205 yet,kinda $$$.I currently have a 420/Rockwell.Very short front shaft. Don't want to build 2 sets of shafts.
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Old 02-23-2005, 09:39 PM   #9 (permalink)
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I had a 72 K20 with an 8" skyjacker lift on it, and ran 38.5x16x16.5 TSL's and the only thing I had to do was roll the point under on the front fenders about 1/2", that was the only place it would rub when I turned sharp both ways. I never had a problem with the truck even out 4 wheelin.
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Old 02-24-2005, 01:53 AM   #10 (permalink)
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With33up tires, the most often hit spot on the front is the lower front fender foward of the wheel, usually in a stuffed turn. IOW, the cup at the bottom. One can take the curve out of the inside of that inner cup plate (that completes the cup) to gain some clearance without altering the outer body lines. Trimming the very bottom point helps even more. I think extended bump stops can prevent much rubbing, as well, but that goes against the go-along-to-get-along-so-I-don't-get-flamed opinions of most Pirate members. I'd extend the bump stops about 1" for every 3" of lift, though suspension cycling should drive the amount they're extended.
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Old 02-24-2005, 09:50 AM   #11 (permalink)
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Moving your front axle an inch or two forward will allow you to clear some bigger meats and give you a better front drive shaft angle. 9" of lift and my front axle moved 2" forward and I can clear 39.5"s at full stuff with no rubbing or fender trimming.
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Old 02-24-2005, 10:54 AM   #12 (permalink)
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I've got a '72 K5, 6" and 38"x14.5" Gumbo Monsters ( , they came on the truck ) and trimmed about 3/4" from the front bottom of the front fenders. To make it all look normal, before I cut, I drilled out the plug welds and removed the bolts so I could pull the inner fender away, then made my cuts with the sawzall, touched it up with the grinder, then took a BFH and bent the inner fender back to where it met up with the outer fender/wheelwell. It looks stock, but to clean it up even more it wouldn't be hard to weld the inner fender to the outer one along that seam, then grind the welds down flush and repaint it.

The rear tires rub a little bit at full stuff, but I think the BFH and a little bit of massaging with a grinder/sawzall will give me the extra ~1/2" I need in the rear. If you're set on running 38"s, you could always get a 6" lift, then use ORD's Zero-Rates to both move the axles to the middle of the wheel wells, and to get another inch of height.
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Old 02-27-2005, 12:27 PM   #13 (permalink)
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No one has pic's of one with 37"s,huh? Would like to see how much room they have before I order them. If they don't have adequate room with 6" I will jus get 35"s. 35" seem small though.
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