Another tire sizing question

artfulldodger · Post by **artfulldodger** » Fri Jan 19, 2007 7:22 pm

I recently bought Bad94flstn's 67 D100 which was for sale via Ebay. I got the truck home today and am very happy with it. I would however like to increase the tire size on the back end utilizing 15" diameter wheels. I'm wondering what the maximum height and width tire I can put in there? I like the old style small rim/big tire look, which is why I want the 15's.
Thanks, Tom

Website · Post by **wideblock** » Fri Jan 19, 2007 7:26 pm

on my 66 d100 i ran 32x11.5x15's out back on 8" rims with no hassels. anything bigger would have rubbed

whats on there now? nice truck by the way, congrats on the purchase

artfulldodger · Post by **artfulldodger** » Fri Jan 19, 2007 8:27 pm

Thanks for the quick reply. It has 225/60 15's on it now. The fronts are the same. I would like a little taller front as well, but I prefer a narrower look on the front. I'd like to get the back end sitting just a bit higher than the front also. With a 4 link rear that should be real easy.

artfulldodger · Post by **artfulldodger** » Fri Jan 19, 2007 8:36 pm

Forgot to ask what your backspacing was? Also do you have any pics? That must have really filled out the wheelwells.
Tom

Website · Post by **wideblock** » Fri Jan 19, 2007 10:45 pm

i dont have any pics on the computer, only hard copies. and they aint that great. im assuming your rims are 7"wide?? mine were 8's with 3.75" backspace, they are still on the 66 with 31x10.5 all terrains on all 4 corners. if you want a better look up front, lemme make a suggestion. the 225/60 is a bit small for the wieght of these trucks. im running a 235/70 up front of my current half ton, combined with a 255/70 out back. the 255 fills the rear real nice, fills the fender, without sacrificing handling to a overly large side wall. these are all on 7" wheels. my truck sits dead level when all tires are the same size. with this set up, it has the "i mean bussiness" rake to the truck. just @#% high enough to notice. much larger tire wont fit on the rim.

artfulldodger · Post by **artfulldodger** » Fri Jan 19, 2007 10:54 pm

That front tire you mentioned sounds like a nice size. I also thought about a 275/60/15 on the back. I had a set on some cop rims before and they seemed to be a fairly good fit. Of course it seems like every brand of tire is just a little different when it comes to width.

Website · Post by **wideblock** » Fri Jan 19, 2007 11:01 pm

i have never tryed the 275 on a 7" wheel. seems like it might buldge out a bit, but thats the style these trucks had. the 255 is a bit taller, but not quite as wide. but with the 4 link, you can adjust the hieght to the tire. i had 275's on my big block caprice with 8" rims, made by hoosier, they were rated as mud and snow tires but had a street tread to them with deeper grooves. they hooked up real nice once they got hot. took a lot to plant the 525HP and 585tq numbers that chitty was puttin to the ground.

tom-adc · Post by **tom-adc** » Fri Jan 19, 2007 11:09 pm

my 71 has 275/60/15's at all four corners but I'm going to change the front to 235/70/15 soon just to help steering effort.

MountainMoparRobin · Post by **MountainMoparRobin** » Sat Jan 20, 2007 8:20 am

GOOD BUY! GLAD TO SEE THAT TRUCK STAYED IN THE COMMUNITY! the 275/60/15 is the most popular, out of 6 trucks with not stock build plans, here at the Colorado Cruise last year 5 had them on, and the rim sizes varied from the 7-8 fit nice

artfulldodger · Post by **artfulldodger** » Sat Jan 20, 2007 10:29 am

That's good to know. I think I might fire up the bead blasting booth and clean up the last set of cop rims I have left. I Have lots of plans for the truck, just need to set aside some time. I have to admit that when I first saw this truck for sale, I thought about picking up a 70/71 grill assembly. But when I actually went to Montana to pick it up, I fell in love with the front end. It's one of those situations where ugly is cool.lol

A440cuda1 · Post by **A440cuda1** » Sat Jan 20, 2007 11:05 am

Just bolted a set of 275/65/15's on a 10in wheel on the rear and 235/55/15's on an 8in wheel on the front, rear nice fit and doesn't rub anywhere.

sireland67 · Post by **sireland67** » Sat Jan 20, 2007 4:34 pm

Here is my 71 with 295-50-15 on the rear with a 10" rim and 275-50-15 on the front with a 7" rim.
Since the photo was taken I have lowered the front about 2"
Nothing rubs and it looks good.

tom-adc · Post by **tom-adc** » Sat Jan 20, 2007 5:15 pm

Don't want to hi jack but those with the big wide tires do you have power steering? and if not how does it steer lots of musclwe required to at slow speeds?

Website · Post by **wideblock** » Sat Jan 20, 2007 5:19 pm

tom, id check out your front end. i had 31x10.5x15's up front with all terrain tread on 8" wheels and i had no troubles with steering effort. i had problems at first, but then i swapped king pins, tie rods, and all the bearings one weekend, then got a fresh alignment. it got a lot better after that. i could one hand it in the parking lot if i had to.

tom-adc · Post by **tom-adc** » Sat Jan 20, 2007 5:47 pm

Trey, I have that on my things to do list, I figure something may be worn or out of wack, would rather do the front end if it needs it and not change the tires out I kind of like to fat tire look

sireland67 · Post by **sireland67** » Fri Jan 26, 2007 12:04 am

Tom, mine was real hard to turn until I replaced the steering box, after that like Trey said you can almost park it with one arm.
I bought mine from steer n gear out of Ohio, great people to deal with and they had the box in stock.
Shawn

Sweptline.ORG

Another tire sizing question

Another tire sizing question

tire question