Wheel and Tire selection for a 1970 Step Side - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Fuji · 03-02-2019, 07:02 PM

We are looking at a Hotchkis TVS suspension system for our project but are having trouble determining the potential tire and wheel size after a 4" front and 6" rear lower. Has anyone dealt with this suspension?

**special-K** · 03-03-2019, 08:30 AM

For information on tire fitment you can post your question in the wheel & tire board, too.

68Stepbed · 03-06-2019, 09:36 AM

Any particular reason to run the Hotchkis vs. other options? The reason I ask, is because the Hotchkis setup hasn't really been the go-to for truck handling and there's better options.

68Stepbed · 03-06-2019, 09:38 AM

Quote:

Originally Posted by special-K

For information on tire fitment you can post your question in the wheel & tire board, too.

We have a wheel & tire section?

SCOTI · 03-06-2019, 10:12 AM

Quote:

Originally Posted by 68Stepbed

We have a wheel & tire section?

x2?

BR3W CITY · 03-06-2019, 10:20 AM

**oldman3** · 03-06-2019, 10:33 AM

Quote:

Originally Posted by 68Stepbed

We have a wheel & tire section?

I've never seen it, but would be good...Jim

**mongocanfly** · 03-06-2019, 05:00 PM

When s-k posted that I went looking for it...never did find it...

scoots71 · 04-04-2019, 01:21 PM

Did you find a tire and wheel combo

Fuji · 04-04-2019, 01:45 PM

Quote:

Originally Posted by scoots71

Did you find a tire and wheel combo

No, guess we will have to wait till
Everything is in place and then do all the measurements. Seems strange that as many of these trucks that have been built the info hasn’t already been documented. Oh well.
Posted via Mobile Device

SCOTI · 04-04-2019, 02:34 PM

Quote:

Originally Posted by Fuji

No, guess we will have to wait till
Everything is in place and then do all the measurements. Seems strange that as many of these trucks that have been built the info hasn’t already been documented. Oh well.
Posted via Mobile Device

No.1 reason is because EVERY truck is different as are most every owners likes. What works for one may not another so you still can't go by the specs Avg. Joe provides. Yes, they can be used as a starting point but you should always measure your exact set-up when determining what can or will work.

scoots71 · 04-04-2019, 06:28 PM

Quote:

Originally Posted by Fuji

No, guess we will have to wait till
Everything is in place and then do all the measurements. Seems strange that as many of these trucks that have been built the info hasn’t already been documented. Oh well.
Posted via Mobile Device

I talked to one guy that has 285 40 18 on a 9.5 rim allthe way around

SCOTI · 04-05-2019, 10:19 AM

Quote:

Originally Posted by scoots71

I talked to one guy that has 285 40 18 on a 9.5 rim allthe way around

This is what causes confusion & exactly why random numbers don't work. While this combo might have actually been installed on one particular Step Side truck, I know it wouldn't work on MANY others.

scoots71 · 04-05-2019, 08:47 PM

Ok good luck then

SCOTI · 04-06-2019, 12:39 PM

Quote:

Originally Posted by scoots71

Ok good luck then

I don't need luck because I actually measure & ask specific questions if needed vs generic 'will they fit' questions. That being said, please don't take offense.

Without knowing the details & having pics of the actual vehicle, it's difficult to validate the combo for a different (the thread starters) truck.

SCOTI · 04-06-2019, 12:47 PM

Fugi..... 4/6 drops are mild so there's definitely room for some decent size rubber. My recommendation is to Google 'Hotchkis C10' & do some investigating. I know there are pics out there of multiple trucks running that Hotchkis set-up & they might have their wheel/tire combos posted. Find one you like the appearance of, try to determine those specs & work from there.

68Stepbed · 04-10-2019, 03:27 PM

Quote:

Originally Posted by scoots71

I talked to one guy that has 285 40 18 on a 9.5 rim allthe way around

That's probably me. I have 18x9.5(5.25" bs) on all fours. I did have 285/40/18 tires, but now I'm running 275/35/18. I'm currently using TCI Engineering suspension, but I had this setup with a 4.5/6.75 dropped stock suspension.

The determining factor will be rearend width. I have a 72 rearend, which is wider than the 67-70 rearends. That's going to change your backspace numbers. Also, for what it's worth, the 5.25" backspacing is still a bit too much for a stock stepside bed. 5" bs would've been ideal, but hard to come by in a one-piece wheel.

Again, as SCOTI said, measuring what you have is the best way to know what will and won't fit.

SCOTI · 04-10-2019, 03:53 PM

Quote:

Originally Posted by 68Stepbed

That's probably me. I have 18x9.5(5.25" bs) on all fours. I did have 285/40/18 tires, but now I'm running 275/35/18. I'm currently using TCI Engineering suspension, but I had this setup with a 4.5/6.75 dropped stock suspension.

The determining factor will be rearend width. I have a 72 rearend, which is wider than the 67-70 rearends. That's going to change your backspace numbers. Also, for what it's worth, the 5.25" backspacing is still a bit too much for a stock stepside bed. 5" bs would've been ideal, but hard to come by in a one-piece wheel.

Again, as SCOTI said, measuring what you have is the best way to know what will and won't fit.

Your truck & '1971_c10' truck were the 1st two I thought of when I opened this thread. Thanks for reinforcing the need to check your personal set-up vs what another truck might have. It can be a frustrating & expensive mistake.

03-02-2019, 07:02 PM	#1
Fuji Registered User Join Date: Jan 2018 Location: Sturgeon Posts: 2	Wheel and Tire selection for a 1970 Step Side We are looking at a Hotchkis TVS suspension system for our project but are having trouble determining the potential tire and wheel size after a 4" front and 6" rear lower. Has anyone dealt with this suspension?

03-03-2019, 08:30 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Wheel and Tire selection for a 1970 Step Side For information on tire fitment you can post your question in the wheel & tire board, too. __________________ "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 ~

03-06-2019, 09:36 AM	#3
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: Wheel and Tire selection for a 1970 Step Side Any particular reason to run the Hotchkis vs. other options? The reason I ask, is because the Hotchkis setup hasn't really been the go-to for truck handling and there's better options. __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

03-06-2019, 10:20 AM	#6
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Wheel and Tire selection for a 1970 Step Side __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-06-2019, 05:00 PM	#8
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: Wheel and Tire selection for a 1970 Step Side When s-k posted that I went looking for it...never did find it... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

04-04-2019, 01:21 PM	#9
scoots71 Registered User Join Date: Jul 2015 Location: ronhert park californa Posts: 31	Re: Wheel and Tire selection for a 1970 Step Side Did you find a tire and wheel combo

04-05-2019, 08:47 PM	#14
scoots71 Registered User Join Date: Jul 2015 Location: ronhert park californa Posts: 31	Re: Wheel and Tire selection for a 1970 Step Side Ok good luck then

04-06-2019, 12:47 PM	#16
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,064	Re: Wheel and Tire selection for a 1970 Step Side Fugi..... 4/6 drops are mild so there's definitely room for some decent size rubber. My recommendation is to Google 'Hotchkis C10' & do some investigating. I know there are pics out there of multiple trucks running that Hotchkis set-up & they might have their wheel/tire combos posted. Find one you like the appearance of, try to determine those specs & work from there. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*



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