Got some new wheels: Boss 338's in 20x10 and 20x8.5 - Page 38 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1967wannabe · 09-30-2011, 06:26 PM

Pics of the 20x10 on a 13" rotor (with better lighting and better angle of the lip width).

funkytechmonkey · 10-01-2011, 12:49 AM

Aight... So I ran into a problem. Passanger side mounts up and fits PERFECT. No problem at all. Drivers side... not so much. I didnt even notice the difference in the rotors when mounting them up. The drivers side is kinda rough and the smooth lip that goes up against the flat part of the rotor is not consistantly round. The passanger side is all smooth and the flat surface is perfect all the way around. I have taken a few pics to see if you guys can help me.

I have taken a grinder to the rough part of the drivers side and the wheel goes on a little bit further but it still does not set all the way against the rotor. I would really like to fix this myself... I know its going to be WEEKS before I can call POL, have them ship me a new one and exchange them out. Any help would be great guys... thanks! here are the pics.

BrianV · 10-01-2011, 12:55 AM

so where is the best place to buy these wheels that you guys know of

thanks
Brian

funkytechmonkey · 10-01-2011, 12:59 AM

Quote:

Originally Posted by BrianV

so where is the best place to buy these wheels that you guys know of

thanks
Brian

check page 41.

Back to my question... Is it safe for me to grind on this rotor or will I screw something up? whats my best option?

Andy4639 · 10-01-2011, 08:29 AM

Quote:

Originally Posted by funkytechmonkey

check page 41.

Back to my question... Is it safe for me to grind on this rotor or will I screw something up? whats my best option?

I would be ordering a new rotor!

VA72C10 · 10-01-2011, 01:07 AM

I am sure you can grind the small amount needed off with no issues. That's what everyone else has to do to get the rotors to fit properly...just do a little at a time and test fit until it fits correctly.

relaxedsierra · 10-01-2011, 02:05 AM

Will have to ask my friend what he is running

relaxedsierra · 10-01-2011, 02:09 AM

Quote:

Originally Posted by relaxedsierra

My buddies truck...

mcbassin · 10-01-2011, 07:51 AM

Quote:

Originally Posted by relaxedsierra

My buddies truck...

Looks like your buddy is running Coys.

big mike71 · 10-01-2011, 11:17 AM

That's a sweet GMC.

dkauffman05 · 10-01-2011, 11:34 AM

Has anyone put any 18x9.5 on the rear of a 67-70 step. Im bout to take the plunge and i know i will prob need a 1-1/14 spacer depending on tire. If so what tire size did you go with .

dkauffman05 · 10-01-2011, 07:37 PM

I was thinking 285-50-18

BossHogg69 · 10-01-2011, 11:12 PM

Yes, and you don't need a spacer for the 18s. I have them on my 69 stepper. If you use 1.25" spacer, the outer edge our your tire will get shredded by your fender! If anything, maybe a .25" just to center up the wheel in the fender from side to side so they don't sit in too far, and that's only if you're really picky (like me). I actually used a .5" spacer and totally cut out the fender lip, but I'm going for a little different look, and what I did was not necessary to make the wheels fit.

nt30 · 10-03-2011, 11:42 AM

Subscribing for updates.
Posted via Mobile Device

brossow · 10-03-2011, 12:14 PM

Quote:

Originally Posted by nt30

Subscribing for updates.
Posted via Mobile Device

FYI, you can subscribe to a thread using the "Thread Tools" menu at the top of every page; you don't need to post just to subscribe. No harm done -- just mentioning it since a lot of people don't know this.

Welcome to the site!

Brent

tattoed71 · 10-19-2011, 02:21 PM

check out the ridler 5 spoke wheel there similar to the 338s but they fit with no problem and come and gray center and black center i bought a set for my 71 love em and easier on the wallet then the 338s

brossow · 10-19-2011, 02:30 PM

Quote:

Originally Posted by tattoed71

check out the ridler 5 spoke wheel there similar to the 338s but they fit with no problem and come and gray center and black center i bought a set for my 71 love em and easier on the wallet then the 338s

And they're made in China, not in the USA like the Boss wheels.

1967wannabe · 10-19-2011, 02:59 PM

Quote:

Originally Posted by brossow

And they're made in China, not in the USA like the Boss wheels.

You beat me to the punch, I was gonna say "Hecho en?"

dkauffman05 · 10-28-2011, 06:45 PM

I just dropped my 67 stepside 5-7 plan on buying some 338s this week you guys think i can run a 295-45-18 in the rear ? i do have a adj track bar.

funkytechmonkey · 10-28-2011, 06:52 PM

That's what I ordered at first then realized they were a little taller than I wanted so I decided to go with 295 40 20... Now they are on backorder for 3 weeks
Posted via Mobile Device

dkauffman05 · 10-29-2011, 05:51 PM

Does the latest 18x9.5 have a 94.62 hub bore ? i hope so i had my stock axles redrilled today to 5x5 and tried some vett ralleys on but they would not go over my hub. from what i can find on the net the 5x5 338's are a 94.62 bore which will is about 3.725" and my axles are around 3.5 roughly using a tape. Just want someone to confirm before i have to put my axles in the lathe.

Andy4639 · 10-29-2011, 06:54 PM

Mine fit fine with no problems on the rear.

**lolife99** · 10-29-2011, 08:36 PM

Quote:

Originally Posted by dkauffman05

Does the latest 18x9.5 have a 94.62 hub bore ? i hope so i had my stock axles redrilled today to 5x5 and tried some vett ralleys on but they would not go over my hub. from what i can find on the net the 5x5 338's are a 94.62 bore which will is about 3.725" and my axles are around 3.5 roughly using a tape. Just want someone to confirm before i have to put my axles in the lathe.

Usually the center hub of the 6-lug axles needs to be turned down to the 5x5 dimension to allow the 71-72 style brake drum to fit.
Some after market rear disc brake kits require the axle to be turned down even more.
I would match the axle's center hub dimension, to the brake drum or disc brake hat,... which ever you are using.

dkauffman05 · 10-29-2011, 07:05 PM

so you have stock axles ? was your truck already 5 lug ?

dkauffman05 · 10-29-2011, 09:53 PM

I am using stock drums that have been redrilled. I need to know if the wheel bore is big enough .94.62mm = 3.725" is what i read somewhere but the boss site dosen't list bore. if what i read is true it should work with no lathe work. I just don't want to do it if not needed

09-30-2011, 06:26 PM	#1
1967wannabe Registered User Join Date: Aug 2011 Location: Houston TX Posts: 227	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Pics of the 20x10 on a 13" rotor (with better lighting and better angle of the lip width). Attached Images

10-01-2011, 12:49 AM	#2
funkytechmonkey Registered User Join Date: Jan 2011 Location: Lawrenceville, GA Posts: 1,080	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Aight... So I ran into a problem. Passanger side mounts up and fits PERFECT. No problem at all. Drivers side... not so much. I didnt even notice the difference in the rotors when mounting them up. The drivers side is kinda rough and the smooth lip that goes up against the flat part of the rotor is not consistantly round. The passanger side is all smooth and the flat surface is perfect all the way around. I have taken a few pics to see if you guys can help me. I have taken a grinder to the rough part of the drivers side and the wheel goes on a little bit further but it still does not set all the way against the rotor. I would really like to fix this myself... I know its going to be WEEKS before I can call POL, have them ship me a new one and exchange them out. Any help would be great guys... thanks! here are the pics. Attached Images __________________ Never wrenched a day in my life and now... Im doing a frame off restoration on a 1968 C10 with a Porterbuilt Dropmember, Acuair E-Level kit, Boyd Welds Gas tank and mild c-notch. Click here to view my build

10-01-2011, 12:55 AM	#3
BrianV Registered User Join Date: Mar 2010 Location: Mesa, Az Posts: 364	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 so where is the best place to buy these wheels that you guys know of thanks Brian

10-01-2011, 01:07 AM	#6
VA72C10 VA72C10 Join Date: Mar 2008 Location: Midlothian, VA Posts: 25,269	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 I am sure you can grind the small amount needed off with no issues. That's what everyone else has to do to get the rotors to fit properly...just do a little at a time and test fit until it fits correctly. __________________ Looking for a 67-72 swb or blazer project in or around VA.

10-01-2011, 02:05 AM	#7
relaxedsierra Registered User Join Date: Sep 2011 Location: Southaven,MS Posts: 39	Will have to ask my friend what he is running Last edited by relaxedsierra; 10-01-2011 at 02:25 AM.

10-01-2011, 11:17 AM	#10
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 That's a sweet GMC. __________________ I'm not as good as I once was, But I'm as good once as I ever was.

10-01-2011, 11:34 AM	#11
dkauffman05 Registered User Join Date: Jan 2008 Location: Cumming, Georgia Posts: 417	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Has anyone put any 18x9.5 on the rear of a 67-70 step. Im bout to take the plunge and i know i will prob need a 1-1/14 spacer depending on tire. If so what tire size did you go with .

10-01-2011, 07:37 PM	#12
dkauffman05 Registered User Join Date: Jan 2008 Location: Cumming, Georgia Posts: 417	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 I was thinking 285-50-18

10-01-2011, 11:12 PM	#13
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Yes, and you don't need a spacer for the 18s. I have them on my 69 stepper. If you use 1.25" spacer, the outer edge our your tire will get shredded by your fender! If anything, maybe a .25" just to center up the wheel in the fender from side to side so they don't sit in too far, and that's only if you're really picky (like me). I actually used a .5" spacer and totally cut out the fender lip, but I'm going for a little different look, and what I did was not necessary to make the wheels fit. __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!! Last edited by BossHogg69; 10-01-2011 at 11:22 PM.

10-03-2011, 11:42 AM	#14
nt30 Registered User Join Date: Sep 2011 Location: Boston,MA Posts: 75	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Subscribing for updates. Posted via Mobile Device

10-19-2011, 02:21 PM	#16
tattoed71 Registered User Join Date: Jul 2011 Location: abilene,Texas Posts: 149	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 check out the ridler 5 spoke wheel there similar to the 338s but they fit with no problem and come and gray center and black center i bought a set for my 71 love em and easier on the wallet then the 338s

10-28-2011, 06:45 PM	#19
dkauffman05 Registered User Join Date: Jan 2008 Location: Cumming, Georgia Posts: 417	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 I just dropped my 67 stepside 5-7 plan on buying some 338s this week you guys think i can run a 295-45-18 in the rear ? i do have a adj track bar.

10-28-2011, 06:52 PM	#20
funkytechmonkey Registered User Join Date: Jan 2011 Location: Lawrenceville, GA Posts: 1,080	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 That's what I ordered at first then realized they were a little taller than I wanted so I decided to go with 295 40 20... Now they are on backorder for 3 weeks Posted via Mobile Device __________________ Never wrenched a day in my life and now... Im doing a frame off restoration on a 1968 C10 with a Porterbuilt Dropmember, Acuair E-Level kit, Boyd Welds Gas tank and mild c-notch. Click here to view my build

10-29-2011, 05:51 PM	#21
dkauffman05 Registered User Join Date: Jan 2008 Location: Cumming, Georgia Posts: 417	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Does the latest 18x9.5 have a 94.62 hub bore ? i hope so i had my stock axles redrilled today to 5x5 and tried some vett ralleys on but they would not go over my hub. from what i can find on the net the 5x5 338's are a 94.62 bore which will is about 3.725" and my axles are around 3.5 roughly using a tape. Just want someone to confirm before i have to put my axles in the lathe.

10-29-2011, 06:54 PM	#22
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 Mine fit fine with no problems on the rear. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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10-29-2011, 07:05 PM	#24
dkauffman05 Registered User Join Date: Jan 2008 Location: Cumming, Georgia Posts: 417	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 so you have stock axles ? was your truck already 5 lug ?

10-29-2011, 09:53 PM	#25
dkauffman05 Registered User Join Date: Jan 2008 Location: Cumming, Georgia Posts: 417	Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5 I am using stock drums that have been redrilled. I need to know if the wheel bore is big enough .94.62mm = 3.725" is what i read somewhere but the boss site dosen't list bore. if what i read is true it should work with no lathe work. I just don't want to do it if not needed

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