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Currently I have a 03 Z71 with a 3" bl w/ crank and 305 Dick Cepek FCII. I'm looking into getting a 6" RCD lift or 5"/6" Superlift F.I.T. Which one do ya'll recommend and what tire size can I fit with this and a bl together? Thanks.
 

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The suspension changer
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I would take an rcd over superlift anyday. Not saying anything is wrong with a superlift but its just my opinion. But 37s would be the biggest I would run. If it were mine, I would run a 36x15.50 claw radial or something like that.
 

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This summer i want to add a body lift to my 6 inch rcd and run 35's on either 16X10's or 18X10's. But you can fit 37's for sure.
 

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bitter southern gun owner
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you can run 37's easy w/o tbars cranked at all

with new keys and cranked some 38.5x15 boggers:evil:
 

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Swamper Brotherhood
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I'd say 37s with ease, maybe some 38s with some trim to the front valance, I see alot of 6+3 with 37s
 

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Cartmans Critters
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Hes gonna have a total of 9" guys he should be able to run a 38 no problem. If Im a 2wd with 10" of lift and can run a 37 on a 10" wide rim he can fit a 38.
 

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Rollin' in the BIG HOG
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On my old 2000 silverado, I had a 6" Fabtech with 3" body lift at one time and was running 37/12.50R16 SSRs on 16x10 rims. It worked good. It still rubbed on the inner fender when turning and hitting a sharp bump. I personally would stick with a 37/12.50 or maybe a 36/13.50 or 36/14.50.
 

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Pat McCrotch
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Go 44s and 15" wheels! Be fucking sick!
 

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Formerly whitetrash
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Hes gonna have a total of 9" guys he should be able to run a 38 no problem. If Im a 2wd with 10" of lift and can run a 37 on a 10" wide rim he can fit a 38.
I ran the 5" procomp cranked to 6 with a 3" body lift, and i still rubbed 36x15.5s pretty hard... even after I trimmed my fenders (read: cut metal). No way he'll fit 38x15.5s without rubbing bad.

For a reference for ya, my fender height was 48.5" once it was up with the lift and tires. If you're any higher, run the 36x15.5s.
If you are the same or lower, I'd say go with a 37x13.5 or a 35x14.5 mud grappler or something. I LOVED my 36x15.5s. But they were a tad too big :D

EDIT: the truck was a 2000 z71. You can find pics in my past posts.
 

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if your planning on 37s or 38s i would suggest upgrading the gearing, especially if your stock with 3:73s or the dreaded 3:42s, 4:10s can get u by tho. goto a 4:88 and upgrade the rear to a 14B SF, especially if your going with a wider 37 or 38.
 

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Cartmans Critters
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I ran the 5" procomp cranked to 6 with a 3" body lift, and i still rubbed 36x15.5s pretty hard... even after I trimmed my fenders (read: cut metal). No way he'll fit 38x15.5s without rubbing bad.

For a reference for ya, my fender height was 48.5" once it was up with the lift and tires. If you're any higher, run the 36x15.5s.
If you are the same or lower, I'd say go with a 37x13.5 or a 35x14.5 mud grappler or something. I LOVED my 36x15.5s. But they were a tad too big :D

EDIT: the truck was a 2000 z71. You can find pics in my past posts.
Maybe it was cause the tires were 15.5 wide? I dunno but I know I can easily fit 36x14.5 on my 10" of lift on my 2WD, and that 37x13.5s will fit too.

Maybe the newer trucks are alil bit taller?
 

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Kyle
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36x14.50's
 

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Formerly whitetrash
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Maybe it was cause the tires were 15.5 wide? I dunno but I know I can easily fit 36x14.5 on my 10" of lift on my 2WD, and that 37x13.5s will fit too.

Maybe the newer trucks are alil bit taller?
The width definately didn't help at all. If i went with the procomp full drop, i could've cranked another inch and not rubbed near as much. Those things were superwide. But it looked so good that I didn't mind the rubbing at all.

And yeah, i don't think 37s would have rubbed. Most 37s measure 36-36.5" and those 36x15.5 measured 36" when mounted on the truck. They were big tires.
 

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OG Member
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If you went with a full drop kit Id say run a 37" tire but since you are looking into the knuckle kits Id say 36" tire.
 
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