15x12 wheels?

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75demonduster

75demonduster

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I have a set of 15x12 Rims for my d100 wondering what would be a good tire size for them, and is there a good place to buy them on line? Thanks.
 
Try discount tire online. See what they have then CALL and see how much more they can do for you.
I bought cooper cobras and got an e bay price ( basically 25% off) and a 10 year full replacement warrentee / road Hazzard)
 
What is the truck being used for? Is it a street strip or a drag race only truck?
 
What year of truck do you have and how much back spacing/offset do the wheels have? If it’s stock ride height, they usually fit equivalent of a 31X10.50-15 with out too much trouble. Some lift and minor wheel tub lip trimming gets larger tires in without too much trouble. Do you have the stock rear suspension?
 
Usually 31X10.5 equivalent but I would go a little bit smaller with it probably being lowered somewhat unless the wheel well edges have been trimmed back
 
But you’re really going to have to figure this one out for yourself some. What you need to do is jack up the rear and support it by the rear axle safely enough to get under. Take a tire off one side and mount your wheel. Use a square and a 24 inch level or other straight edge along with a tape measure see what clearance you have from the inside and outside edged of the rim. I’m assuming it’s been converted to coil overs along with the four link. We can’t tell what other changes have been made fans what may work out on a stock truck may not play too well now. You should be able to get some dimensions from the edges to the inner fender lip, inside rim to inner wheel well lip, and center of the axle shaft centerline to the forward and rear edges of the wheel wells. And the edge of the rim to the four link bars and any other suspension members. I know this may not be the answer you want, but that’s a better option than telling you to get something that won’t come close to fitting. But once you’re armed yourself with this information, you may be able to calculate out what will fit with adequate clearance and match it up yourself. There’s quite a bit of flexibility in tire size adjustment with different sidewall profiles, too. What engine, transmission, and gears are you running? This sounds like it may be a fun one!
 
Garrett Ellison said:
But you’re really going to have to figure this one out for yourself some. What you need to do is jack up the rear and support it by the rear axle safely enough to get under. Take a tire off one side and mount your wheel. Use a square and a 24 inch level or other straight edge along with a tape measure see what clearance you have from the inside and outside edged of the rim. I’m assuming it’s been converted to coil overs along with the four link. We can’t tell what other changes have been made fans what may work out on a stock truck may not play too well now. You should be able to get some dimensions from the edges to the inner fender lip, inside rim to inner wheel well lip, and center of the axle shaft centerline to the forward and rear edges of the wheel wells. And the edge of the rim to the four link bars and any other suspension members. I know this may not be the answer you want, but that’s a better option than telling you to get something that won’t come close to fitting. But once you’re armed yourself with this information, you may be able to calculate out what will fit with adequate clearance and match it up yourself. There’s quite a bit of flexibility in tire size adjustment with different sidewall profiles, too. What engine, transmission, and gears are you running? This sounds like it may be a fun one!
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Has the rear axle been narrowed or the wheel wells modified? You also want to do a baseline check over on the opposite side with a wheel and check dimensions. If the axle has been modified it isn’t uncommon to have one side offset some. I would imagine 295/50-15 would be a safe size to run without issues. Maybe a 60 series. If the rear has been lowered, that may be the largest that fit, while at stock ride height 315/60-15 fit with sometimes, but not always, light metal trimming.
 
I'm going to do a small tub, i found a set of 325/50/15 not sure what the rear is out of. But I did some measurements and with the Rims and tires I've ordered and the axle width it should bring them to the fender lip.
 
What brand or type of tire? Once the tire is mounted on the vehicle, I like to see a one inch wide ruler fit from the cross section of the tire up between the the tire and the fender and wheel well lips. With bias ply or drag radials that can still get pretty tight and rub, depending on how well your suspension handles sway. Oh, BTW, nice truck! I love either of the ‘79 grilles. Weird fact we learned last week on those two designs, they have their own individual core supports. The grille mounting surface on the 80 style sets out an inch farther than on the 1979 support. Do you have the quad headlight or the 1980 style dual headlight? Step side or fuselage bed?
 
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