What is the tallest tire I can run, 2500HD [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: What is the tallest tire I can run, 2500HD


stepuptata
02-07-2005, 07:05 PM
I have a 04 2500 HD. I just installed 2" leveling keys(ground to top fender lip, 39.50"). I want to run a 20x10" wheel and either a 305-50-20 Nitto Grappler(32.2") or a 305-55-20 (33.10") . I do not take this truck off road and I deal realize I will have to trim the front lower valance. Thanks for the Help and suggestions. I'm new here, Troy.

lbz492
02-07-2005, 08:58 PM
i have 285 55 r20 bfgs on 20x10 they are realy 32.5 x 11.70 and i got as much as i could out of the t-bars and i had to trim the lower part of the front bumper and pull back the inner fender because of how wide they are. from when i was looking at tires i didn't think i could fit the nittos but that was just me. i can't stand when the tires rub and i don't off road with it. you have to watch out on how wide the tires and the rims are.

stepuptata
02-08-2005, 04:46 PM
Thanks for the info, I'll probably try the Grappler 305-50-20 (32.22x12.4?) on a 20x9.5. Hopefully they will fit. I can't stand rubbing either. Thanks again, troy.

number9
02-08-2005, 10:30 PM
My truck has the stock keys and T-bars cranked nearly all the way and front fenders measure 39" and rear fenders 40". It still has 245's on it - PO had it this way, I just bought it about a week ago.

Fingers
02-08-2005, 11:01 PM
365/65-16's on 16x10 rims. Some fender trimming required. No lift, not crank.

http://dieselplace.com/forum/attachment.php?attachmentid=23


Making new flares, here is a pic of the new flare in clay. Same tires.

http://dieselplace.com/forum/attachment.php?attachmentid=1943

http://dieselplace.com/forum/attachment.php?attachmentid=1942


http://dieselplace.com/forum/attachment.php?attachmentid=1941

stepuptata
02-09-2005, 05:25 PM
Dammm, Fingers, I can't beleive those monsters Fit! Did those beast rub with the OEM flares?

Fingers
02-09-2005, 05:36 PM
Rub is an understatement. I have cut about 1-1/2" off the bumper a nd valance and just over 2" off the fender behind the wheel. Generous use of a 5 lb hammer on the cab corner finished making room. Not for the faint of heart. My biggest problems were the windshield washer tank and wheel well liners. I Drained the tank, put the shop vac on the filler neck and heated it up till it sucked itself in.

stepuptata
02-09-2005, 09:09 PM
Thats a bit to much custom fab work for me.:) I'll leave that for the pros like yourself. Looks good. C-ya.:ro)

SaguaroKid
02-09-2005, 09:22 PM
Fingers, you got a heck of a shovel collection going on there?

Fingers
02-09-2005, 09:31 PM
Oh come on Stepuptata, what's a little sheetmetal and fiberglass?

And Saguaro, you jealous or something?

HEMIEATER
02-09-2005, 09:39 PM
Fingers, you are CRAZY, but I like it!

Oilbrnr
02-10-2005, 01:36 AM
Fingers, you got a heck of a shovel collection going on there?
He needs them for all the stuff he spreads around here!!! :lol:

Seriously, what is up with all those? Are you bury'n bodies back there in PA?

Fingers
02-10-2005, 08:19 AM
What's the fascination with the shovels? Good looking truck in the picture and everyone looks at the wall behind the truck. Thought this was a truck forum, not the grave diggers weekly.

The shovels are leftovers from my general contracting business. I'm retired from that now.

03GMC2500HD
02-10-2005, 09:14 AM
Fingers, you got a heck of a shovel collection going on there?
I was thinking the same thing:lol:

Fingers
02-10-2005, 09:18 AM
one shovel for each ex wife.....:)

SaguaroKid
02-10-2005, 01:16 PM
):h ):h ):h

stepuptata
02-10-2005, 10:51 PM
OK, enough about those damn shovels. So-what if he barried his ex-wifes in the back yard:) ;) . Lets talk about more important S@#t, like what size tires I can fit on My 04 HD:ro) . I'm tired of slicing my pizza with these gay-ass factory pizza cutters!-:t

Fingers
02-10-2005, 11:41 PM
OK, back on topic. It really depends on how much you are willing to modify. Without a lift. 35's will fit with some trimming and tucking of the fender liners as long as you don't go too wide. The problem with mine is the width swinging wide when I turn the wheel.

IMO it is silly to go with anything less than an 8 inch wide rim. With that in mind, you have to step back to the next best choice which in my opinion is the 315/75-16. Some mods to get it to not rub, but everything is off the shelf. (Since you don't like my custom work :))

Dock Rocket
02-11-2005, 11:12 AM
Will you be selling the flares when you are through? :grd: I'd like a set. I like the front's better than the rears.

stepuptata
02-11-2005, 01:16 PM
I was thinking of either; 305-50-20(wheel 20x9.5) or 325-60-18(wheel 18x9), nitto grapplers.:ro)

Fingers
02-11-2005, 01:35 PM
Of those two, I would go with the 325/60-18's. These trucks look out of place with the super thin rubber.