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#1026 |
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
Holy CRAP! Just got off the phone with the regional AEWC manager and that is in fact a new part number. According to him, that new offset has been out since the beginning of summer and SUPPOSEDLY they enlarged the hub bore as well specifically because of the fitment issues on our trucks. Wish like hell AEWC/Boss would have publicized this! Supposed to be immediate availability in grey and chrome for the 20x10 (didn't ask about black, or other sizes).
Now I have to decide what to do ... I've got a pair of the older chrome 20x10 (and spacers) that have tires mounted but have never been bolted on..... 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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#1027 |
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
I ordered one of these wheels today to test fit the front... They said it will ship out today and I should have it by the first of next week.
I ordered the 20x8.5 with the 5.25 back spacing from that guy with the ebay store. Called him and he was really knowledgable about our trucks and knew about the problem. Nice guy too. Part number AEWC part# 3387-2850-3AA One wheel was $194 shipped. I will let you guys know how it fits.
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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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#1028 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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My set of wheels only took about 10 minutes to grind just enough off to have the caps fit. They did it for free when they installed the wheels. I have the 8.5 up front also no clearance issues at all that I can see.I had some minor rubbing on the back with the 10" tire but found out my helper bags had lost all the air out of them so I pumped them up and will see it this helps any.
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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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#1029 | |
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
Quote:
Let me know if you want to sell the old version ![]() |
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#1030 |
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
Well, I finally got 'em ordered. Went with Chrome Boss 338's since they finally addressed the 20x10 back spacing issue.
Going with 20x8.5's and 20x10's, 255/35R20 and 295/45R20 BFG G-FORCE KDW NT's (freakin' tires cost almost as much as the wheels!!) |
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#1031 |
Registered User
Join Date: May 2011
Location: Winnipeg, Manitoba
Posts: 65
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
who is everyone ordering these wheels through?
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#1032 |
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
Believe it or not Discount Tire had the best deal I could find (FWIW our shop has a wholesale acct w/them so that does affect the price).
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#1033 |
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
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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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#1034 |
Registered User
Join Date: Feb 2006
Location: Smyrna, Ga
Posts: 1,647
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
every time i see this thread, these rims keep kreeping up on my "to-do" list.
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#1035 |
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
I'm interested in the back spacing on the rear. I bought the same set up from my regular wheel guy and they told me the only backspacing available
was 6.225 on the 20 x 10's (rear). I'm happy to be running them. I got a 1" spacer for the rear for a nicer fit. And, (on the front) it took me all of 2 minutes/side with a grinder to clean up the front lip of the spindle for a perfect fit. But, that's old news. What I'd like to find out is if there really is 5.5" backspace available for the 20 x 10's in the rear (gray)...Then I'll put 'em on my "bucket list". Just for a little fatter lip back there. ![]()
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M17 Coarsegold, CA RAT's shiny now. But always a rat. |
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#1036 |
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
There is.... I talked to the guy today about it. They have a 6.25 and a 5.5.
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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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#1037 |
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 wonder if it's actually a deeper lip or just more material on the hub area like Coys does on their wheels...
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Looking for a 67-72 swb or blazer project in or around VA. ![]() |
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#1038 |
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 have read through most of the thread (scanned) i just picked up a 67 swb step. i want to pick up a set of these wheels thinking 18x8 and 18x9.5. I also got front spindles brakes etc off 73-87 truck for 5x5. From what i understand i will prob need a 1" to 1.25" spacer in the rear if i run the 9.5 wheel, could i just get a 6 lug to 5x5 adapter that is that width to keep from doing axles in the rear for now ?
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#1039 |
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
Fits like a glove!!!
__________________
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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#1040 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,701
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#1041 |
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
1.25"
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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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#1042 |
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
I'd like to see (or get a measurement on) the polished lip width on the 20 x 10's. I can't get a reading on the 8.5's other than the 3.25" inch/mm conversion.
Here's the 20 x 10 rear with 6.225 backspacing with 1" spacers on 275 45's. The truck's up on jacks in the first shot. The fronts are 8.5 x 20's with 245 40's. Thanks.
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M17 Coarsegold, CA RAT's shiny now. But always a rat. Last edited by magwakeenercew2jh; 09-27-2011 at 10:10 PM. |
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#1043 |
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
This is very interesting.
Did you take any pics of the centercap? I'd like to see how the new ones are made. |
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#1044 |
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
could it be something to do with the willwood rotors having a smaller hub???
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Looking for a 67-72 swb or blazer project in or around VA. ![]() |
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#1045 | |
Registered User
![]() Join Date: Apr 2004
Location: Sacramento
Posts: 3,737
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
Quote:
Also, the new center caps snap in with an O-ring.
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'72 2wd blazer, bagged w/ watts link & EDC '72 C10 "Lowered Farm Truck" STOLEN 5-18-11 '66 impala ht |
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#1046 |
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
I only have the willwood calipers... not rotors.
Is there a measurement I can take for you guys that would help?
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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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#1047 |
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
Diameter of the hub (rotor hat) at the top and bottom (farthest and nearest the rotor surface, respectively).
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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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#1048 | |
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:
Thanks.
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M17 Coarsegold, CA RAT's shiny now. But always a rat. |
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#1049 |
Registered User
Join Date: Sep 2011
Location: clanton, Alabama
Posts: 32
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Re: Got some new wheels: Boss 338's in 20x10 and 20x8.5
New to this forum. But I also would like to see the 5.5 backspacing.
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#1050 |
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
My wheels (20x10 5.5 bs & 20x8.5) are in at the supplier, just waiting on the BFG G-force KDW's. I had my guy send two pics, not the best angle though.
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