Got some new wheels: Boss 338's in 20x10 and 20x8.5 - Page 44 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

60apache · 07-15-2013, 11:53 PM

Quote:

Originally Posted by AZChevyland

Did this. Ground rotors up front. Spacers in rear. Measure 3 times before ordering spacers if you want it tight. 20" wheels, 10" wide in back with 6.23 bs, 8.5" wide in front with 5.24 bs.

What size are those?
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**nlped** · 11-19-2012, 05:08 PM

^^^ Good looking truck!!!
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heathbirkendahl · 11-19-2012, 05:38 PM

Great looking ride and wheels!!!

bugmasta · 11-27-2012, 08:21 PM

so without reading through 50+ pages of jibber jabber, can someone confirm or deny if the new wheels do or do not fit '72 front rotors without having to grind the hub?

**lolife99** · 11-27-2012, 08:35 PM

Quote:

Originally Posted by bugmasta

so without reading through 50+ pages of jibber jabber, can someone confirm or deny if the new wheels do or do not fit '72 front rotors without having to grind the hub?

No.
You will have to grind the hub. Period.
Just like in the picture.
(4 posts before this one).

bugmasta · 11-27-2012, 08:47 PM

Quote:

Originally Posted by lolife99

No.
You will have to grind the hub. Period.
Just like in the picture.
(4 posts before this one).

perfect, thats what i needed to know. also, will 4.5 backspace fit? its actually a 68 c20 with conversion drop spindles to use 72 front components.

**lolife99** · 11-27-2012, 08:53 PM

Quote:

Originally Posted by bugmasta

perfect, thats what i needed to know. also, will 4.5 backspace fit? its actually a 68 c20 with conversion drop spindles to use 72 front components.

I personally would rather have the 5.25" BS on a 8.5" wide front wheel.

krawler00 · 12-04-2012, 02:40 PM

Finally scrounged enough cash together to get everything done. Looks pretty good. Now to lower the rear 1-2". I need functionality so no more dropping for me. 20x8.5 front 20x10 rear.

HotRod C/10 · 12-16-2012, 08:14 PM

Specs:
Narrow rearend
5 1/2" Backspace Boss 338's (rear)
Toyo Proxes II's 295/40R20
1" hub centric spacer from here. https://www.ezaccessory.com/ProductD...ode=5500-5500P

HotRod C/10 · 03-01-2013, 09:22 PM

my buddy is looking for 20's in a 338 8.5 up front (5.25 offset) and 10's (5.5 offset) for the back.....chrome

ksbrktracer · 03-01-2013, 09:42 PM

Quote:

Originally Posted by hotrod c/10

my buddy is looking for 20's in a 338 8.5 up front (5.25 offset) and 10's (5.5 offset) for the back.....chrome

see vendor section or call 918-845-1935

Marko3002 · 04-02-2013, 09:28 PM

Just got a set of the Boss 338's and they bolted on perfectly without any issues!!

brossow · 04-02-2013, 09:32 PM

Quote:

Originally Posted by Marko3002

Just got a set of the Boss 338's and they bolted on perfectly without any issues!!

Must have light-duty (1") or aftermarket rotors up front.

landsurvey1 · 04-02-2013, 10:02 PM

Mine is the same way, no issues at all.

HotRod C/10 · 03-01-2013, 09:51 PM

Ha, he is in afghanistan, he just asked me to get him priceing and has sent me some cash for wheels and tires, among other stuff.

ksbrktracer · 03-01-2013, 10:07 PM

Quote:

Originally Posted by hotrod c/10

ha, he is in afghanistan, he just asked me to get him priceing and has sent me some cash for wheels and tires, among other stuff.

see vendor section or call 918-845-1935

ksbrktracer · 03-03-2013, 12:37 PM

New style of 338 , same as 3rd revision wheels with smooth barrel

ksbrktracer · 03-03-2013, 12:43 PM

18 x8 in black

ksbrktracer · 03-20-2013, 01:19 AM

See vendor section for current deals.

buckskins4ever · 03-01-2013, 09:55 PM

I went with the Ridler 695 in Chrome for my bagger stepside....20x10 rear and 20x8.5 fronts with Hankook 245/45 front and 275/45 rears......Love the stance and look.

srea76 · 03-03-2013, 04:40 PM

Are the new runs direct bolt on or does truck still need modified for fit?

ksbrktracer · 03-06-2013, 06:27 PM

Quote:

Originally Posted by srea76

Are the new runs direct bolt on or does truck still need modified for fit?

depends on who you talk to and what rotors your truck has on the front.
I just did a 72 with 1-1/4 thick rotors and they bolted right on, but I have discovered they are aftermarket rotors, I am looking into it right now. I will have good info in the next day or two.

RaceAGMC · 03-03-2013, 09:11 PM

Can you get the 22's in the charcoal centers with the polished lip like all the other sizes?
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ksbrktracer · 03-06-2013, 06:30 PM

Quote:

Originally Posted by RaceAGMC

Can you get the 22's in the charcoal centers with the polished lip like all the other sizes?
Posted via Mobile Device

Yes

SEE VENDOR SECTION

**lolife99** · 03-11-2013, 10:33 AM

I personally have not seen any 1-1/4 rotors that don't require grinding.
Seems like the new parts store rotors are more bulky than oem GM rotors.
But how many trucks on the road today still have their originally installed rotors?

A sandpaper flap disc on a grinder will solve any issues.

11-19-2012, 05:08 PM	#2
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,147	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 ^^^ Good looking truck!!! Posted via Mobile Device __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

11-19-2012, 05:38 PM	#3
heathbirkendahl Registered User Join Date: Jul 2012 Location: Campbell, CA Posts: 452	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Great looking ride and wheels!!! __________________ 1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides

11-27-2012, 08:21 PM	#4
bugmasta Registered User Join Date: Aug 2009 Location: North Bend, WA Posts: 272	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 so without reading through 50+ pages of jibber jabber, can someone confirm or deny if the new wheels do or do not fit '72 front rotors without having to grind the hub?

12-04-2012, 02:40 PM	#8
krawler00 Registered User Join Date: Feb 2012 Location: Winder Posts: 27	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Finally scrounged enough cash together to get everything done. Looks pretty good. Now to lower the rear 1-2". I need functionality so no more dropping for me. 20x8.5 front 20x10 rear. Attached Images

12-16-2012, 08:14 PM	#9
HotRod C/10 Registered User Join Date: Feb 2012 Location: Albuquerque NM Posts: 3,053	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Specs: Narrow rearend 5 1/2" Backspace Boss 338's (rear) Toyo Proxes II's 295/40R20 1" hub centric spacer from here. https://www.ezaccessory.com/ProductD...ode=5500-5500P __________________ SOLD -77 CHEYENNE SWB, LS SWAPPED -1976 SILVERADO YUBA GOLD/NEUTRAL (2-TONE)

03-01-2013, 09:22 PM	#10
HotRod C/10 Registered User Join Date: Feb 2012 Location: Albuquerque NM Posts: 3,053	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 my buddy is looking for 20's in a 338 8.5 up front (5.25 offset) and 10's (5.5 offset) for the back.....chrome __________________ SOLD -77 CHEYENNE SWB, LS SWAPPED -1976 SILVERADO YUBA GOLD/NEUTRAL (2-TONE)

04-02-2013, 09:28 PM	#12
Marko3002 Registered User Join Date: Dec 2012 Location: Phoenix Posts: 38	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Just got a set of the Boss 338's and they bolted on perfectly without any issues!! Attached Images

04-02-2013, 10:02 PM	#14
landsurvey1 Registered User Join Date: Jan 2009 Location: Arizona Posts: 404	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Mine is the same way, no issues at all. Attached Images __________________ 1972 Chevy short bed ZZ4 350/355hp GMPP crate engine. 1972 Cheyenne K-20 454/400hp big block 1988 Jeep Wrangler 2010 Jeep Sport Unlimited

03-01-2013, 09:51 PM	#15
HotRod C/10 Registered User Join Date: Feb 2012 Location: Albuquerque NM Posts: 3,053	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Ha, he is in afghanistan, he just asked me to get him priceing and has sent me some cash for wheels and tires, among other stuff. __________________ SOLD -77 CHEYENNE SWB, LS SWAPPED -1976 SILVERADO YUBA GOLD/NEUTRAL (2-TONE)

03-03-2013, 12:37 PM	#17
ksbrktracer TNT-MOTORSPORTS Join Date: Mar 2008 Location: TULSA OKLAHOMA Posts: 2,692	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 New style of 338 , same as 3rd revision wheels with smooth barrel Attached Images Last edited by ksbrktracer; 03-20-2013 at 08:44 AM.

03-03-2013, 12:43 PM	#18
ksbrktracer TNT-MOTORSPORTS Join Date: Mar 2008 Location: TULSA OKLAHOMA Posts: 2,692	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 18 x8 in black Attached Images Last edited by ksbrktracer; 03-20-2013 at 08:33 AM.

03-20-2013, 01:19 AM	#19
ksbrktracer TNT-MOTORSPORTS Join Date: Mar 2008 Location: TULSA OKLAHOMA Posts: 2,692	See vendor section for current deals. Attached Images Last edited by N2TRUX; 03-20-2013 at 09:42 AM.

03-01-2013, 09:55 PM	#20
buckskins4ever Registered User Join Date: Dec 2012 Location: Altoona Iowa Posts: 481	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 I went with the Ridler 695 in Chrome for my bagger stepside....20x10 rear and 20x8.5 fronts with Hankook 245/45 front and 275/45 rears......Love the stance and look.

03-03-2013, 04:40 PM	#21
srea76 Registered User Join Date: Nov 2009 Location: Hazlehurst, Ga. Posts: 822	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Are the new runs direct bolt on or does truck still need modified for fit? __________________ 1972 Custom Deluxe LT1 Gen V Swap "Green Lantern" 1984 Silverado Red Baron-72 c10 Project

03-03-2013, 09:11 PM	#23
RaceAGMC Registered User Join Date: Jul 2007 Location: Charlotte, NC Posts: 350	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Can you get the 22's in the charcoal centers with the polished lip like all the other sizes? Posted via Mobile Device __________________ 70 CST, 6.0/ 4L80E in the works. Custom harness by 68 Short Step



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03-11-2013, 10:33 AM	#25
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,691	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 I personally have not seen any 1-1/4 rotors that don't require grinding. Seems like the new parts store rotors are more bulky than oem GM rotors. But how many trucks on the road today still have their originally installed rotors? A sandpaper flap disc on a grinder will solve any issues. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

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