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#1076 |
VA72C10
![]() Join Date: Mar 2008
Location: Midlothian, VA
Posts: 25,269
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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.
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Looking for a 67-72 swb or blazer project in or around VA. ![]() |
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#1077 |
Registered User
Join Date: Sep 2011
Location: Southaven,MS
Posts: 39
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Will have to ask my friend what he is running
Last edited by relaxedsierra; 10-01-2011 at 02:25 AM. |
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#1078 |
Registered User
Join Date: Sep 2011
Location: Southaven,MS
Posts: 39
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
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#1079 |
Still Learning
Join Date: Jul 2009
Location: Central Oklahoma
Posts: 10,108
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
Looks like your buddy is running Coys.
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#1080 | |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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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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#1081 |
Registered User
Join Date: Mar 2009
Location: independence mo
Posts: 2,111
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
That's a sweet GMC.
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I'm not as good as I once was, But I'm as good once as I ever was. |
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#1082 |
Registered User
Join Date: Jan 2008
Location: Cumming, Georgia
Posts: 417
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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 .
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#1083 |
Registered User
Join Date: Jan 2008
Location: Cumming, Georgia
Posts: 417
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
I was thinking 285-50-18
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#1084 |
motor exploder
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
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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.
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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. |
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#1085 |
Registered User
Join Date: Sep 2011
Location: Boston,MA
Posts: 75
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
Subscribing for updates.
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#1086 |
Amateur Rust Fighter
Join Date: Sep 2007
Location: Mankato, MN
Posts: 1,087
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
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
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Brent '72 Chevy SWB stepside - [ Build Thread ] '79 ChevMC SWB fleetside - [ Build Thread ] '64 Chevy SWB fleetside & '66 Chevy SWB stepside (waiting in the wings...) |
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#1087 |
Registered User
Join Date: Jul 2011
Location: abilene,Texas
Posts: 149
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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
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#1088 | |
Amateur Rust Fighter
Join Date: Sep 2007
Location: Mankato, MN
Posts: 1,087
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
Quote:
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Brent '72 Chevy SWB stepside - [ Build Thread ] '79 ChevMC SWB fleetside - [ Build Thread ] '64 Chevy SWB fleetside & '66 Chevy SWB stepside (waiting in the wings...) |
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#1089 |
Registered User
Join Date: Aug 2011
Location: Houston TX
Posts: 227
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
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#1090 |
Registered User
Join Date: Jan 2008
Location: Cumming, Georgia
Posts: 417
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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.
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#1091 |
Registered User
Join Date: Jan 2011
Location: Lawrenceville, GA
Posts: 1,080
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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
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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 |
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#1092 |
Registered User
Join Date: Jan 2008
Location: Cumming, Georgia
Posts: 417
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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.
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#1093 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Mine fit fine with no problems on the rear.
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__________________
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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#1094 |
Registered User
Join Date: Jan 2008
Location: Cumming, Georgia
Posts: 417
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
so you have stock axles ? was your truck already 5 lug ?
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#1095 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
Quote:
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.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#1096 |
Registered User
Join Date: Jan 2008
Location: Cumming, Georgia
Posts: 417
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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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#1097 |
Registered User
Join Date: Dec 2011
Location: Paducah, Kentucky
Posts: 16
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
I'm thinking of replacing my old rims and I like the BOSS 338'S. I've got the 1.25" rotors and planning a 5" static drop front and back. Any thoughts on 18" vs. 20" rims? Wondering if BOSS made any changes to this model wheel in as far as the center caps not having a flush fit due to the rotor hat length?
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#1098 |
Registered User
![]() Join Date: May 2007
Location: dallas ga
Posts: 1,505
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
I recently bought a set of these and the hub had to be clearanced only a little on the nose for the wheel to slide onto the rotor. I did it with a belt sander while still on the truck. It took all of five minutes per side and I had ZERO issues with the cap. IMHO they are the best bang for your buck when it comes to wheels....
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#1099 | |
RAT1968 '68 Cab/'71 Parts
Join Date: Feb 2002
Location: Coarsegold, CA
Posts: 2,375
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
Quote:
Same thing here. But I used a grinder while the rotors were (also) still on the truck. 4-6 ECE stat. drop with shocks, shock re-locators, etc. 20" X 8.5" up front, 20" x 10" in rear. I used 1" spacers in the rear for bed clearance and to balance up the track a little. The rear wheels (10's) I have are probably earlier B/S at something like 3.24" or something like that...But I haven't heard anything definitive about the wheels being deeper after they came out with the bigger inch back-spacing. I would have liked the rear to have a wider (deeper) rim...But I'm happy.
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M17 Coarsegold, CA RAT's shiny now. But always a rat. Last edited by magwakeenercew2jh; 01-18-2012 at 07:53 PM. |
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#1100 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
86 Chevy SWB with 18 X8.5 up front and 20 X 10s in the back. Using a wheel adapter to offset the rear to fit the fenders and a thin 1/4" spacer on the front hub with a longer wheel stud in the hubs. 1.25" brakes with the hub center smoothed for fitment.
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