A 285 tire on a stock rim will rub the frame when at full turn so a 305 on a stock rim will rub sooner.
I'm not exactly sure how to explain this but if you have rims with a lot of offset or if you add spacers/adapters that will actually make the tires rub worse. Especially on the rear of the fender wells. I had some issues with my rims clearing my caliper mounting bracket, so I had to get some custom made 1.25" adapters to stick them out some. Now, I have 4" of lift in the front and with the 1.25" adapters and the big offset on my pro comp rims I couldn't even clear a 265/75R16. I had to do some major trimming and melting of plastic. And it still rubs a little at full crank and a little compression of the front suspension.I am thinking the same if I get a wheel spacer with a 1.5" thickness or a wheel with 1.5" less backspacing I could fit them
I'm not sure a 305/65 will fit with only 3" of lift, without doing some major trimming and melting of fenders.I am thinking the same if I get a wheel spacer with a 1.5" thickness or a wheel with 1.5" less backspacing I could fit them
The quoted post is a little mis-leading. To use the 1" spacer, you will need longer studs. If you try and use a 1" adapter, you won't be able to fit the rims since the oem lugs are just over 1.25" long.You could try a 1" spacer on the factory wheels to clear frame and suspension but probably will rub on the outer fender where the mudflaps are.
Very true. Exactly why my adapters are 1.25". Just enough to clear.The quoted post is a little mis-leading. To use the 1" spacer, you will need longer studs. If you try and use a 1" adapter, you won't be able to fit the rims since the oem lugs are just over 1.25" long.
I have another question thou, are you trying to put those wheels on stock rims? Doesn't the Pro have 16s?
Lastly, just remember when you increase the size of the tire, you are adding weight and most likely diameter so you may need to look into gearing to correct for this but its not an easy thing on the 2nd gens.
Mike's clear because he has wider rims and they have some serious offset ( and look amazing of course)I have 305/70R16 tires mounted on American Outlaw Colt wheels. No spacers.
I have to ask, how does this help?according to Fabtech with there 6" lift you can clear a 315/70/17 tire on a 17x8 wheel with a 5" backspacing with minor trimming
I have to ask, how does this help?
As you may have noticed by the responses that it is hard to tell until you pick the rim and tire and then what your final lift will be. Our truck have a wacky bolt pattern (6x4.5) so it is hard to find rims that fit. Then when you find the bolt pattern, the offset and backspacing are wacky. This is why there are so many clearance issues on the front end.
Then on top of all of this, a lot of guys have decided to go the Tswap way so its even different for them.
When it boils down to it thou, you may think a spacer will help but in all honesty, the spacer only allows the inner side of the tire to impact the fenders quicker.
Lastly, I know you want to go wider, but you have to look at the safety limits of the rims width. A 285 will fit on an 16" oem rim but its not recommended but a 305 or 315 is just insane. It has been done but I would not recommend it unless you have aftermarket rims that are wide enough.
Lastly, don't forget about gearing since wider tires are also heavier and possibly taller so your overall ratio will suffer and your truck will be a dog off the line and a pig at the pump.
Doughboy has 6" fabtech Lift with 35saccording to Fabtech with there 6" lift you can clear a 315/70/17 tire on a 17x8 wheel with a 5" backspacing with minor trimming
I would get rid of those rims and get a set that fits.Anyways sorry to thread, but this is exactly the kind of problems we're forced to deal with.
Yah but I like the pro comps and have them fitting now. Plus they were new and are a lot of money. I dont feel like trying to fit another rim and deal with all the hassle again of mounting the tires and the tpms sensors and everything. What was weird that we all discussed a while ago in a big thread is that I have the same pro comps as a bunch of other people on here who didnt have any issue at all with them fitting on. Pro comp even said they should fit but they didnt. I got pictures of it in this thread here.Doughboy has 6" fabtech Lift with 35s
I would get rid of those rims and get a set that fits.