How deep can you go on stock rear end - The 1947 - Present Chevrolet & GMC Truck Message Board Network

C10Samano · 04-30-2018, 07:44 PM

The wheels I'm looking at are 20x10 4.5 backspacing and -25 offset will they fit

**special-K** · 04-30-2018, 08:39 PM

What do you mean by deep?

Problems · 04-30-2018, 09:10 PM

I think he means how much offset you can run. We would need to know if it is a fleet or a stepside. Also is it a C or a K, lifted or dropped.

But I don’t think those wheels have enough backspacing to fit unless the truck is lifted. The tire will stick out past the bedside, I believe with a 20x10 you need 5.5 backspacing to keep it underneath the bedside. Also a 10” wheel can run like a 295 tire which would need widened wheel tubs.

There’s a lot of good threads on max tire/wheel size on here if you search.

Faastone27 · 04-30-2018, 09:45 PM

I can only go by what I ended up doing on my 71 fleetside. I did a 22" X10.5 with 5.5 b.s. and a 305/tire on a stock width rearend. I feel that I pushed them out as far as I felt I could with any rubbing issues. so with that being said I think on a 10" wide wheel you would need at least a 5" b.s. to keep the wheel/tire safely inside the wheel well with no rubbing. but depends on how much if any you are lowered.

**Boog** · 05-01-2018, 05:56 AM

Narrow or wide rear end makes a BIG difference too.

C10Samano · 05-01-2018, 09:52 AM

Quote:

Originally Posted by Faastone27

I can only go by what I ended up doing on my 71 fleetside. I did a 22" X10.5 with 5.5 b.s. and a 305/tire on a stock width rearend. I feel that I pushed them out as far as I felt I could with any rubbing issues. so with that being said I think on a 10" wide wheel you would need at least a 5" b.s. to keep the wheel/tire safely inside the wheel well with no rubbing. but depends on how much if any you are lowered.

Can you show me pictures of how your rear wheels look and pictures from the back of the truck

C10Samano · 05-01-2018, 10:36 AM

Would 20x12 with 5 backspace fit?

Problems · 05-01-2018, 12:21 PM

Quote:

Originally Posted by C10Samano

Would 20x12 with 5 backspace fit?

No that’s even worse. If you have a 12” wheel with 5” of backspace that leaves 7” of wheel outboard, between the hub and the bedside lip. As faastone points out 5” is the max a 1971-1972 can take. As Boog pointed out year makes a difference 1967-1970 have a rearend that is 3/4” narrower per side than 71-72, so those could take 5.5” of wheel between the hub and bedside lip.

Again really more detail is needed about your truck. If you search threads tons of people post their lift or drop, wheel and tire combo and a pic. Choose one that matches your stats and you like the look of.

Faastone27 · 05-01-2018, 09:54 PM

Quote:

Originally Posted by C10Samano

Can you show me pictures of how your rear wheels look and pictures from the back of the truck

**Boog** · 05-01-2018, 10:03 PM

As Dave Kindig says that ride is *****IN!

C10Samano · 05-01-2018, 11:09 PM

Quote:

Originally Posted by Faastone27

That's a sick truck!! How much inches of lips in the rear do you have

vman1213 · 05-31-2018, 10:46 PM

Quote:

Originally Posted by Faastone27

What size tire you running? I just rehooped to 20x10 with a 295/30/20 i bagged in place of coil and it rubs on the lip when aired out

vman1213 · 05-31-2018, 10:49 PM

Quote:

Originally Posted by vman1213

What size tire you running? I just rehooped to 20x10 with a 295/30/20 i bagged in place of coil and it rubs on the lip when aired out

5" backspace on my rear wheels

There is a little lip tacked to the wheel well. If I cut it out I think I'll be good

04-30-2018, 07:44 PM	#1
C10Samano Registered User Join Date: Feb 2017 Location: Bakersfield, California Posts: 8	How deep can you go on stock rear end The wheels I'm looking at are 20x10 4.5 backspacing and -25 offset will they fit

04-30-2018, 08:39 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: How deep can you go on stock rear end What do you mean by deep? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

04-30-2018, 09:10 PM	#3
Problems Registered User Join Date: Feb 2018 Location: Waterford, Wi Posts: 73	Re: How deep can you go on stock rear end I think he means how much offset you can run. We would need to know if it is a fleet or a stepside. Also is it a C or a K, lifted or dropped. But I don’t think those wheels have enough backspacing to fit unless the truck is lifted. The tire will stick out past the bedside, I believe with a 20x10 you need 5.5 backspacing to keep it underneath the bedside. Also a 10” wheel can run like a 295 tire which would need widened wheel tubs. There’s a lot of good threads on max tire/wheel size on here if you search.

04-30-2018, 09:45 PM	#4
Faastone27 Registered User Join Date: Nov 2017 Location: Johns Creek Georgia Posts: 64	Re: How deep can you go on stock rear end I can only go by what I ended up doing on my 71 fleetside. I did a 22" X10.5 with 5.5 b.s. and a 305/tire on a stock width rearend. I feel that I pushed them out as far as I felt I could with any rubbing issues. so with that being said I think on a 10" wide wheel you would need at least a 5" b.s. to keep the wheel/tire safely inside the wheel well with no rubbing. but depends on how much if any you are lowered.

05-01-2018, 05:56 AM	#5
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,514	Re: How deep can you go on stock rear end Narrow or wide rear end makes a BIG difference too. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

05-01-2018, 10:36 AM	#7
C10Samano Registered User Join Date: Feb 2017 Location: Bakersfield, California Posts: 8	Re: How deep can you go on stock rear end Would 20x12 with 5 backspace fit?

05-01-2018, 10:03 PM	#10
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,514	Re: How deep can you go on stock rear end As Dave Kindig says that ride is *****IN! __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross



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