Common Lift/Tire Combo's for OBS/NBS Trucks & SUVs

[J to the izA]

Originally posted by treyZ28

hopefully i can get this silverado i'm hoping for- but i need to see if the rebates in nov are the same

np man


good luck getting the dream truck. im sure the rebates will be the same. economy aint fully healed yet.

[treyZ28]

Originally posted by J to the izA


np man


good luck getting the dream truck. im sure the rebates will be the same. economy aint fully healed yet.

i was about 10 sec from handing the dealer the deposit check for a black ex cab 2500hd duramax/allison LS with tow package and bling wheels


then i foudn out in michigan sales tax would be on $35,000 whereas in NY (where i am from) it would be $13,000 (differance b/t trade in and new truck)

so now the battle plan changes

[surferdude]

Big tires on a stock truck? A southern thing? WTF? Oh, brother. Well, this southern boy bought a used 99 with 305's already on it - in PA. So, aside from the ethnic stereotype, I like having 305's on my truck and I haven't had any problems running them with the stock t-bar keys.

[J to the izA]

Originally posted by surferdude
Big tires on a stock truck? A southern thing? WTF? Oh, brother. So, aside from the ethnic stereotype,

cmon, dont even try to say that southerners are an ethnic group thats a joke

i realize its stereotyping yes, but its really another talk show. the topic of tires is here.

305s will work, its all in preference, personal taste. i prefer the look of 285s to 305s. both work its just two different looks.

[surferdude]

Talk show? What a jackass. Have a nice day.

[geno96Z71]

I currently have 285's on stock rims and stock suspension. Id' like to step up to a 6" lift and 35" 's. I've been told that Pro-Comp lifts have some problems with ball joints. Any comments or suggestions for the brand of lift kit to go with?

Geno

[HDCHEVYMAN]

I have a 2001 2500HD and I fit 305/75/16 under my truck stock with no torsion bar adjustment and light trimming to the bumper. They were mounted on a 16x8 wheel. I now have a 8" Fabtech lift and a 3" body lift on my truck with 38x15.50 running on it.

[SilveradoLady]

Originally posted by slamchops
These are only common lift/tire combinations that seem to work well together. Some setups may rub in off-highway situations, but most allow for clearance. Any wheel that is 'not recommended' for that particular height can be run, but is not advisable.

Metric Tire Size Conversion

OBS Trucks (88-98), OBS SUVs (92-99):

Stock height
- 285/75R16 & 32/11.5R15 on Stock wheels or 16x8/15x8 (possible torsion bar crank); 16x10/15x10 not recommended
- 305/70R16 & 33/12.5R15 on Stock wheels or 16x8/15x8 (torsion bar crank and light trimming); 16x10/15x10 (torsion bar crank and heavy trimming, or cutout flares)

3" Suspenion Lift or Body Lift
- 305/70R16 & 33/12.5R15 on Stock Wheels or 16x8/15x8; 16x10/15x10 (possible torsion bar crank and light trimming)
- 315/75R16 & 35/12.5R15 on Stock Wheels or 16x8/15x8 (torsion bar crank and heavy trimming, or cutout flares); 16x10/15x10 not recommended

4" Suspension Lift
- 305/70R16 & 33/12.5R15 on Stock Wheels or 16x8/15x8; 16x10/15x10 (possible torsion bar crank and light trimming)
- 315/75R16 & 35/12.5R15 on Stock Wheels or 16x8/15x8 (torsion bar crank and heavy trimming); 16x10/15x10 (cutout flares)

6" Total Lift (3" Suspension Lift + 3" Body Lift or 6" Suspension Lift)
- 315/75R16 & 35/12.5R15 on Stock Wheels or 16x8/15x8; 16x10/15x10 (possible torsion bar crank and light trimming)
- 36/12.5R16 & 36/12.5R15 on Stock Wheels or 16x8/15x8 (torsion bar crank and heavy trimming); 16x10/15x10 not recommended

7" Total Lift (4" Suspension Lift + 3" Body Lift)
- 315/75R16 & 35/12.5R15 on Stock Wheels, 16x8/15x8, or 16x10/15x10
- 36/12.5R16 & 36/12.5R15 on Stock Wheels or 16x8/15x8 (torsion bar crank and light trimming); 16x10/15x10 (torsion bar crank and heavy trimming, or cutout flares)

9" Total Lift (6" Suspension Lift + 3" Body Lift)
- 315/75R16 & 35/12.5R15 on Stock Wheels, 16x8/15x8, or 16x10/15x10
- 36/12.5R16 & 36/12.5R15 on Stock Wheels, 16x8/15x8, or 16x10/15x10
- 38/15.5R16 & 38/15.5R15 on 16x10/15x10 (torsion bar crank and light trimming)

NBS Trucks (99-03), NBS SUVs (00-03):

Stock height
- 285/75R16 on Stock wheels or 16x8 (possible torsion bar crank); 16x10 not recommended
- 305/70R16 on Stock wheels or 16x8 (torsion bar crank and light trimming); 16x10 (torsion bar crank and heavy trimming, or cutout flares)

3" Suspenion Lift or Body Lift
- 305/70R16 and under on Stock Wheels or 16x8; 16x10 (possible torsion bar crank and light trimming)
- 315/75R16 on Stock Wheels or 16x8 (torsion bar crank and heavy trimming, or cutout flares); 16x10 not recommended

4" Suspension Lift
- 305/70R16 and under on Stock Wheels or 16x8; 16x10 (possible torsion bar crank and light trimming)
- 315/75R16 on Stock Wheels or 16x8 (torsion bar crank and heavy trimming); 16x10 (cutout flares)

6" Total Lift (3" Suspension Lift + 3" Body Lift or 6" Suspension Lift)
- 315/75R16 on Stock Wheels or 16x8; 16x10 (possible torsion bar crank and light trimming)
- 36/12.5R16 on Stock Wheels or 16x8 (torsion bar crank and heavy trimming); 16x10 not recommended

7" Total Lift (4" Suspension Lift + 3" Body Lift)
- 315/75R16 on Stock Wheels, 16x8, or 16x10
- 36/12.5R16 on Stock Wheels or 16x8 (torsion bar crank and light trimming); 16x10 (torsion bar crank and heavy trimming, or cutout flares)

9" Total Lift (6" Suspension Lift + 3" Body Lift)
- 315/75R16 on Stock Wheels, 16x8, or 16x10
- 36/12.5R16 on Stock Wheels, 16x8, or 16x10
- 38/15.5R16 on 16x10 (torsion bar crank and heavy trimming)



*Note:Thanks to those who double-checked everything and added more info.

A+ Dude!

[nebraskaz71]

on a newer hd with the 6-7.5" superlift what size would fit on 16x10 and what about if i had that lift plus cutouts?

[rjwms]

Did the 2WD drive guys ever speak up?

I have a 4 1/2" lift and I easily fit 305/70 R16. I should of gone 315/75 R16.

BTY... I have an OBS. It makes a difference.

[PaulSter]

Nice list. One note-- Fabtech's information says their 6" is recommended for 35x12.50s and 16x8 wheels. Not coincidentally, I'm running the 16x8s. I did slightly trim the front bumper and air dam though.

PaulS

[Trory]

Awesome Info Slamchops! Helped me a lot...

[fierotoo]

Well for a NBS 2WD Silverado, stock height so far, I have 265 75r16 on there--31.8 inches diameter tires. I haven't noticed any rub yet, and all onroad driving so far.

Chris

[My1stGMC]

Thanks for the info. It makes it a lot easier for us newbies when somone with experience takes the time to do the legwork.

[autopat]

From all the Tire shops I've spoken to, they say 315's will fit on a stock height HD, with no mods. Myself, I'm going to go ahead with the green keys before I make a tire change! I'm also going with a 295/75/16 on 16X8's, with a possible upgrade to 315's later, I just wanna see how they fit first . When I first got my HD, I noticed it was almost the same height as the Yukon (next to it), and it's got a 6" RCD w/35's, so I figured the only difference (height wise) was the difference in tire height.

[baddassZ]

Hey Guys, I've got a 2001 Z-71, with 285/75/10 tires with stock rims and I'm thinking about getting a 3 inch body lift. Do yall think it will look good? Also I was wondering how big do 285/75/10 tires translate to like compared to 33's?

[Castle Killer]

285/75R16, I bet you mean, since that is what you list in your sig.

285s are about 33x11.50, 305/70R16 is about 33x12.50.
These are not exact-EXACT translations of the sizes, and different brands will differ from one to the other.

I would think that they would/could be a bit small with the body lift.
Your 2" lift is a torsion bar crank, correct?
I would think that if you are using your stock rims that 295/75R16 would look very nice (about 34x11.50, and thus better fitted to your rim's width than the 305).

[DblNutzSierra4x4]

What's the biggest size tires can I put w/ 16x10's on a stock 00 4x4. Right now I'm running 265 75 16's. I wanna put the biggest size w/o a lift.BTW torsion bars are cranked.Also when they say trim where do they mean?

[treyZ28]

anyone running a 32 x 11.5 (x16)on a stock ride height silverado?

I need new tires but expect a 2500HD in the driveway soon so i'd like the biggest tires i can right now and swappem later. Im more concerned about width that height because most of my offoading is at the sand dunes. Actually, all of it is- all that a stock truck couldn't handle anway -back ally/trail behind the house, feild and occasional curb (damn school! make the parking lot wider! if someone parks next to me, i cant get out!) Not a fan of the mud pits around here as its all tight trails and a body damage magnet.

Seeing how its going to be a heavy diesel, width is important to me.

[GMC HD 4x4]

Is there a lift that will let you run H2's 17X8.5's 5x5 back spacing ? Starting to get ideas ? If possable just 4".............



Thanks

BTW: slamchops nice job!!