3.5" backspace?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**71blksuper4x4** · 04-28-2015, 08:55 PM

Hey guys, I am looking at a set of 17x9 wheels for my crew cab build. Does anybody have any negatives of 3.5 backspace on a wheel? I don't want to throw massive amounts of grime over my truck after spending so much time on details. I really didn't know how far they would stick out on one of our trucks. Thanks Trevor

**special-K** · 04-29-2015, 07:39 AM

I'm surprised anything has so little backspace. The trend had been toward more and that being an issue on our trucks. Are newer vehicles back to more inset mounting points but with more spacer built into the wheel?

**argonaut** · 05-09-2015, 11:30 AM

That backspace would be about right for a 15" wheel, in order to not hot the tire rod end. But on a 17x9" you could, and would want to run, a little more backspacing. What size tires will you run?

ryanroo · 05-09-2015, 05:37 PM

I had 17x9 with 4.5 on my 04. I plan on that for my green one. I bet it's plenty wide that way, but I'm not terribly worried about the stick out. I like it. I think with 3.5 you will be out there a ways. Depends on tires of course and what axles you run. I've forgotten what you're set up is there

**71blksuper4x4** · 05-09-2015, 08:01 PM

I've settled on a 17 x 9, with 4.5 "backspace -12 offset. Planning 35/12.50/17 tires. Axles are the GM Dana 60 srw front and 2003 aam 11.5 3/4 to 1 ton rear end srw. The 3.5 backspace would push the tires out too much for me. Thanks guys Trevor

**special-K** · 05-10-2015, 06:20 AM

I can't imagine what a 3.5" backspace 9" 8-lug wheel would be right for. I do see a lot of newer trucks where guys are running that skateboard wheel look, though. Is that a new trend and these are wheels to satisfy the demand?

Mike C · 05-10-2015, 08:27 PM

I'm with the other guys, that's the wrong BS for such a large rim size. I ran 3 5/16" Centerline ProTrucks on my Jimmy in 15x10 with 35 12.50 15's on the stock axles. I now have 8 lug spindles/hubs swapped onto my original Dana44 and a 9.5" 14 bolt in the back with 4.5" back space 16.5x9.75 Centerlines. The 4.5" seems to be a near perfect choice IMO.

**71blksuper4x4** · 05-13-2015, 10:56 PM

Well after placing several orders and getting refunded, I finally found out that the 17x9 -12 offset Ansen Sprint (Slot) 8x6.5 (8x165.1) is now looking discontinued........ Great! Back to the drawing board!

**argonaut** · 05-13-2015, 11:51 PM

That sucks! Those things look sweet.

**argonaut** · 05-13-2015, 11:52 PM

That sucks! Those things look sweet!

swamp rat · 05-15-2015, 11:45 PM

I think it sucks too, if the old 16.5's ever get ever get discontinued that was gonna be an option.

ryanroo · 05-16-2015, 09:58 AM

those wheels are awesome. sucks that you cant get them. you think they'll run another production if you order more? i'm in for 5... haha

**71blksuper4x4** · 05-16-2015, 01:00 PM

Ryan, I wanted 5 as well for a spare and because I wanted to make sure I was covered if they got discontinued. Found a big wheel warehouse on eBay that lists them for sale. Emailed them if they had a 5th for a spare and they said yes and when I called them a day later, "Sorry, we don't have any in stock!". Wth

04-28-2015, 08:55 PM	#1
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,155	3.5" backspace?? Hey guys, I am looking at a set of 17x9 wheels for my crew cab build. Does anybody have any negatives of 3.5 backspace on a wheel? I don't want to throw massive amounts of grime over my truck after spending so much time on details. I really didn't know how far they would stick out on one of our trucks. Thanks Trevor __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

04-29-2015, 07:39 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: 3.5" backspace?? I'm surprised anything has so little backspace. The trend had been toward more and that being an issue on our trucks. Are newer vehicles back to more inset mounting points but with more spacer built into the wheel? __________________ "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 ~

05-09-2015, 11:30 AM	#3
argonaut Senior Member Join Date: Aug 2008 Location: Long Beach, CA Posts: 1,813	Re: 3.5" backspace?? That backspace would be about right for a 15" wheel, in order to not hot the tire rod end. But on a 17x9" you could, and would want to run, a little more backspacing. What size tires will you run? __________________ Jason M. @argonaut62 1972 K5 Blazer CST, Turquoise 1966 K20 Short Fleet Pickup, Big Ugly 1964 C10 Short Fleet, Gertrude 2001 Porsche 911 Carrera 1996 Ford Bronco XLT 1980 Jeep Wagoneer 2008 Honda CBR1000RR 2005 Honda RC51 1981 Honda CB750C No dis-assemble Johnny Five! No dis-assemble!

05-09-2015, 05:37 PM	#4
ryanroo Senior Member Join Date: Apr 2004 Location: sw colorado Posts: 2,720	Re: 3.5" backspace?? I had 17x9 with 4.5 on my 04. I plan on that for my green one. I bet it's plenty wide that way, but I'm not terribly worried about the stick out. I like it. I think with 3.5 you will be out there a ways. Depends on tires of course and what axles you run. I've forgotten what you're set up is there __________________ 72 K20 12v build 72 K20 "parts truck" A place for your diesel swap questions

05-09-2015, 08:01 PM	#5
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,155	Re: 3.5" backspace?? I've settled on a 17 x 9, with 4.5 "backspace -12 offset. Planning 35/12.50/17 tires. Axles are the GM Dana 60 srw front and 2003 aam 11.5 3/4 to 1 ton rear end srw. The 3.5 backspace would push the tires out too much for me. Thanks guys Trevor __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

05-10-2015, 06:20 AM	#6
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: 3.5" backspace?? I can't imagine what a 3.5" backspace 9" 8-lug wheel would be right for. I do see a lot of newer trucks where guys are running that skateboard wheel look, though. Is that a new trend and these are wheels to satisfy the demand? __________________ "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 ~

05-10-2015, 08:27 PM	#7
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,723	Re: 3.5" backspace?? I'm with the other guys, that's the wrong BS for such a large rim size. I ran 3 5/16" Centerline ProTrucks on my Jimmy in 15x10 with 35 12.50 15's on the stock axles. I now have 8 lug spindles/hubs swapped onto my original Dana44 and a 9.5" 14 bolt in the back with 4.5" back space 16.5x9.75 Centerlines. The 4.5" seems to be a near perfect choice IMO. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-13-2015, 10:56 PM	#8
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,155	Re: 3.5" backspace?? Well after placing several orders and getting refunded, I finally found out that the 17x9 -12 offset Ansen Sprint (Slot) 8x6.5 (8x165.1) is now looking discontinued........ Great! Back to the drawing board! Attached Images __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

05-13-2015, 11:51 PM	#9
argonaut Senior Member Join Date: Aug 2008 Location: Long Beach, CA Posts: 1,813	Re: 3.5" backspace?? That sucks! Those things look sweet. __________________ Jason M. @argonaut62 1972 K5 Blazer CST, Turquoise 1966 K20 Short Fleet Pickup, Big Ugly 1964 C10 Short Fleet, Gertrude 2001 Porsche 911 Carrera 1996 Ford Bronco XLT 1980 Jeep Wagoneer 2008 Honda CBR1000RR 2005 Honda RC51 1981 Honda CB750C No dis-assemble Johnny Five! No dis-assemble!

05-13-2015, 11:52 PM	#10
argonaut Senior Member Join Date: Aug 2008 Location: Long Beach, CA Posts: 1,813	Re: 3.5" backspace?? That sucks! Those things look sweet! __________________ Jason M. @argonaut62 1972 K5 Blazer CST, Turquoise 1966 K20 Short Fleet Pickup, Big Ugly 1964 C10 Short Fleet, Gertrude 2001 Porsche 911 Carrera 1996 Ford Bronco XLT 1980 Jeep Wagoneer 2008 Honda CBR1000RR 2005 Honda RC51 1981 Honda CB750C No dis-assemble Johnny Five! No dis-assemble!

05-15-2015, 11:45 PM	#11
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: 3.5" backspace?? I think it sucks too, if the old 16.5's ever get ever get discontinued that was gonna be an option. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

05-16-2015, 09:58 AM	#12
ryanroo Senior Member Join Date: Apr 2004 Location: sw colorado Posts: 2,720	Re: 3.5" backspace?? those wheels are awesome. sucks that you cant get them. you think they'll run another production if you order more? i'm in for 5... haha __________________ 72 K20 12v build 72 K20 "parts truck" A place for your diesel swap questions

05-16-2015, 01:00 PM	#13
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,155	Re: 3.5" backspace?? Ryan, I wanted 5 as well for a spare and because I wanted to make sure I was covered if they got discontinued. Found a big wheel warehouse on eBay that lists them for sale. Emailed them if they had a 5th for a spare and they said yes and when I called them a day later, "Sorry, we don't have any in stock!". Wth __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever



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