find the right wheel
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Mountain Pass
Joined: Mar 2014
Posts: 147
Likes: 5
find the right wheel
hey guys im finally going to get my truck a lift, 6" susp with 3" body total of 9" lift. tires im going with are 38.50x14.50x16R interco trxus M/T radial. and like the title says im looking for the right wheels for the tires. interco recommends a 12" wide wheels problem is that i can't figure out how much backspace and offset i need for these tires so the tires function with with the lift.
Hotshot
Joined: Jun 2015
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There is a '95 F-150 in his profile. IMO, that is way too much lift - getting in and out will get old fast and then there is the state lift law if applicable. There is the issue of that much tire with ____ gear ratio and the stock Dana 44 TTB and 8.8 axles. Yes a 12" wide rim is correct but that width puts a lot of stress on all the ball joints and bearings.
It doesn't really answer your question but I think you will regret your decision since it will cause other issues.
It doesn't really answer your question but I think you will regret your decision since it will cause other issues.
Posting Guru
Joined: Mar 2016
Posts: 1,534
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From: Missoula
Originally Posted by My4Fordtrucks
There is a '95 F-150 in his profile. IMO, that is way too much lift - getting in and out will get old fast and then there is the state lift law if applicable. There is the issue of that much tire with ____ gear ratio and the stock Dana 44 TTB and 8.8 axles. Yes a 12" wide rim is correct but that width puts a lot of stress on all the ball joints and bearings.
It doesn't really answer your question but I think you will regret your decision since it will cause other issues.
It doesn't really answer your question but I think you will regret your decision since it will cause other issues.
Thread Starter
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Mountain Pass
Joined: Mar 2014
Posts: 147
Likes: 5
yea i know there is going to be a problem with ball joints and bears going bad i also plan on going to a 4.11 gears if i did this.(running 3.73 right now) but i thought the dana 44 and 8.8 would handle these kinds of tires. if they really can't would i have to go to a 35x14.50 or just go to a ford 9" with a better front end axle which i heard is a real pain in the ***. and plus if i upgrade all of this it would not be a daily anymore.
Hotshot
Joined: Jun 2015
Posts: 12,830
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4:10 gears would work with the 35" tires but isn't low enough for the 38"s. Look at one of the many gear vs rpm charts to see what will get you close to stock. You may need a 4:56 or even lower. While the 9" is stronger than an 8.8 it wouldn't be my next choice. It was still a 1/2T axle. I also agree that you would need to be looking at an axle that would be under at least a 3/4T truck. The stock axles will work but for how long? If you are doing street only they may be ok but for how long?
Was the 14.5" a typo and you meant to write 12.5"? That is a lot of tire width. Are you going mud bogging?
Was the 14.5" a typo and you meant to write 12.5"? That is a lot of tire width. Are you going mud bogging?
Laughing Gas
Joined: Feb 2016
Posts: 906
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If it's a trailer queen mud rig the stock axles should last a good while. Shock loading pretty much doesn't exist in mud (unless you're the kind of enlightened individual who things every start deserves a 3500rpm clutch dump). Screw driving something with 9" lift and 38" tires on the street.
x2 on 1-ton axles front and rear.
x2 on 1-ton axles front and rear.
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Fleet Owner
Joined: May 2009
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From: Gilbert, PA
yea i know there is going to be a problem with ball joints and bears going bad i also plan on going to a 4.11 gears if i did this.(running 3.73 right now) but i thought the dana 44 and 8.8 would handle these kinds of tires. if they really can't would i have to go to a 35x14.50 or just go to a ford 9" with a better front end axle which i heard is a real pain in the ***. and plus if i upgrade all of this it would not be a daily anymore.
I would be looking at 5.13s.
And the D44 and 8.8 will HATE 38s
Maybe you better rethink lifting your truck that far
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Logistics Pro
Joined: Mar 2011
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From: Central Wisconsin
It's pretty well agreed by the members here that 33" tires are about as big as you can go on the stock axles on a half ton before you routinely are fixing the truck more than you drive it if you're seeing serious off road use. You can get away with 35" tires if it's a pavement princess.
What you want to do calls for 1 ton axles, Sterling 10.25 and Dana 60, with 5.13 gears minimum without even knowing what engine or transmission you're running.
If this thing is meant for street use, you'd be better off doing a 4 to 6" suspension lift and putting 35x12.5" tires on it. If you're planning to do some serious offroading, sell this truck and buy an F350 to lift. Give yourself, and your wallet, the advantage.
What you want to do calls for 1 ton axles, Sterling 10.25 and Dana 60, with 5.13 gears minimum without even knowing what engine or transmission you're running.
If this thing is meant for street use, you'd be better off doing a 4 to 6" suspension lift and putting 35x12.5" tires on it. If you're planning to do some serious offroading, sell this truck and buy an F350 to lift. Give yourself, and your wallet, the advantage.
Thread Starter
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Mountain Pass
Joined: Mar 2014
Posts: 147
Likes: 5
im sorry guys i don't think i could let my truck go just to get a new one and start all over again on fixing problems then have to built back up money for upgrades. yea its a 95 f150 with a gutless 5.0. But i have put about $2,500 into it so far and if i sell it now it would be for a huge loss, and plus almost all f350 are dually or ext cab long beds or crew long beds. i like my truck because its a ext cab reg bed, now if the stock axles can't handle the 38's then i will just go down to 35x12.50 then just do some light trailing, mudding, and keep it for a daily driver.
Posting Guru
Joined: Oct 2009
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From: Ohio
5.0, and I'm guessing a M5OD-R2 with stock axles and 4.10 gearing isn't going to do much good with anything over 33" tires. I'd seriously consider finding another truck for this project, if I were you. There's much more to building a rig than you think, and you don't have half the parts to make it work right.
Senior User
Joined: Feb 2003
Posts: 117
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From: West central Indiana
Well at least these guys are positive..... I understand your inputs and while theoretically you are all probably right...but...thing is he didn't ask you.
Your opinions are really for another question.
The OP simple asked asked for what would be close to the right back spacing to keep the tires where they need to be.
Seems the "gurus" had no answer for that....huh...interestingly enough.
BTW 14.5's have been around for decades.
I personally think the half ton axles should be fine with 36's and if it were an older 1/2 ton rig with a 9 inch rear and Dana 44 solid front it would be fine with 38's.
As for as 4.10's not being low enough for 35's,I disagree. Ever drive a old high boy with 4.10's and 33's,too low.
My 88 F350 with a 351 C6 and 4.10s needs at least 35's.
I will agree the Mazda 5 speed has no place in a big tire,low gear truck. First gear is way to high and the trans is weak.
Your opinions are really for another question.
The OP simple asked asked for what would be close to the right back spacing to keep the tires where they need to be.
Seems the "gurus" had no answer for that....huh...interestingly enough.
BTW 14.5's have been around for decades.
I personally think the half ton axles should be fine with 36's and if it were an older 1/2 ton rig with a 9 inch rear and Dana 44 solid front it would be fine with 38's.
As for as 4.10's not being low enough for 35's,I disagree. Ever drive a old high boy with 4.10's and 33's,too low.
My 88 F350 with a 351 C6 and 4.10s needs at least 35's.
I will agree the Mazda 5 speed has no place in a big tire,low gear truck. First gear is way to high and the trans is weak.
Elder User
Joined: May 2013
Posts: 533
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If you are going to change gears anyways then seriously think about 4.56 at a minimum for 35's but 4.88 is perfect i think. 302 needs the rpms up more than a 351.
As for the 8.8... i blew one up in my Bronco that was 4 years old when i bought it, just regular wheeling, nothing serious at that point. They don't put up with too much.
As for the 8.8... i blew one up in my Bronco that was 4 years old when i bought it, just regular wheeling, nothing serious at that point. They don't put up with too much.