Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

trkfrk · 11-01-2010, 07:38 PM

real quick.. I ordered a set of 20x10 - 5 on 5 with a 20mm offset for the rear. the wheels showed up today and are not what I expected... I expected the big lip to be on the out side. seems like the offset is reversed. maybe I did not do enough research. sorry I do not have a picture ( I left them at Discount tire). The Boss web site shows only one part number. Can someone Please show me a picture and tell me where I screwed up?

I had to order the grays and send out for chrome. This shouldnt matter?? - Thanks

alexr421 · 11-01-2010, 07:43 PM

i dont think they offer an offset choice??

**lolife99** · 11-01-2010, 08:05 PM

The rear 20x10's only come in one offset.
(6.225" backspace)
Did you try them on your truck to see what they looked like?
Most likely you will need a 1" or 1.250" spacer.
These wheels were designed for the 88-98 trucks in mind.
I assume you know all the problems related to the front wheels not fitting?

k5hart · 11-01-2010, 09:03 PM

This is the best I have that shows the lip. They have some lip but not what it sounds like your looking for.

lolife99 is right. There are two loonnggg threads about putting these on 67-72's. They don't just bolt on.

trkfrk · 11-02-2010, 07:13 PM

Quote:

Originally Posted by lolife99

The rear 20x10's only come in one offset.
(6.250" backspace)
Did you try them on your truck to see what they looked like?
Most likely you will need a 1" or 1.250" spacer.
These wheels were designed for the 88-98 trucks in mind.
I assume you know all the problems related to the front wheels not fitting?

I did not pick-up the wheels. Yes, Same thing I thought only one offset offered.. The part number right off of bossmotorsports.com is 3386-2050 / 20x10 5 on 5 20mm / 6.225. my only problem is Discount sent the wheels out to be chromed and they did not come back in the original box with the part number. I am thinking Boss sent a different part number. This is why I was hoping some one will post a picture reflecting this part number.. Thanks for your help...

**lolife99** · 11-02-2010, 07:36 PM

Read all of this,...
http://67-72chevytrucks.com/vboard/s...d.php?t=352320

*stich626* · 11-02-2010, 07:53 PM

isn't there a part# on the wheels

panda68 · 11-03-2010, 01:10 PM

heres thre 20x10's on the back of my 68. i have 1 inch spacers in the back and 5 mil in the front.

bguild · 11-16-2010, 03:15 PM

Quote:

Originally Posted by panda68

heres thre 20x10's on the back of my 68. i have 1 inch spacers in the back and 5 mil in the front.

What size tires are you running?

11-01-2010, 07:38 PM	#1
trkfrk Registered User Join Date: Jul 2010 Location: Las Vegas, NV Posts: 969	Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts real quick.. I ordered a set of 20x10 - 5 on 5 with a 20mm offset for the rear. the wheels showed up today and are not what I expected... I expected the big lip to be on the out side. seems like the offset is reversed. maybe I did not do enough research. sorry I do not have a picture ( I left them at Discount tire). The Boss web site shows only one part number. Can someone Please show me a picture and tell me where I screwed up? I had to order the grays and send out for chrome. This shouldnt matter?? - Thanks __________________ Mark 1972 C10 SWB LS1/T56 6 speed trans/4:56 posi with 5.5"-7" static drop/Boss 338 Wheels 18"x20" My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=424609. My first start up http://youtu.be/R899YQ1OcjU

11-01-2010, 07:43 PM	#2
alexr421 Registered User Join Date: Aug 2010 Location: N.Carolina Posts: 34	Re: Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts i dont think they offer an offset choice??

11-01-2010, 08:05 PM	#3
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,701	Re: Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts The rear 20x10's only come in one offset. (6.225" backspace) Did you try them on your truck to see what they looked like? Most likely you will need a 1" or 1.250" spacer. These wheels were designed for the 88-98 trucks in mind. I assume you know all the problems related to the front wheels not fitting? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 11-16-2010 at 03:17 PM.

11-01-2010, 09:03 PM	#4
k5hart Registered User Join Date: Nov 2002 Location: Charleston, South Carolina Posts: 1,370	Re: Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts This is the best I have that shows the lip. They have some lip but not what it sounds like your looking for. lolife99 is right. There are two loonnggg threads about putting these on 67-72's. They don't just bolt on. __________________ 2006 Silverado CCSB, 1939 Ford Sedan, 1962 BelAir Wagon, 1976 Vega Panel Charleston, South Carolina

11-02-2010, 07:36 PM	#6
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,701	Re: Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts Read all of this,... http://67-72chevytrucks.com/vboard/s...d.php?t=352320 __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

11-02-2010, 07:53 PM	#7
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts isn't there a part# on the wheels

11-03-2010, 01:10 PM	#8
panda68 Registered User Join Date: Nov 2009 Location: grand junction colorado Posts: 60	Re: Wrong offset on rear wheels?? I ordered boss 338 20x10 rears 18x8 fronts heres thre 20x10's on the back of my 68. i have 1 inch spacers in the back and 5 mil in the front. Attached Images __________________ horsepower sells cars torque wins races. "caroll shelby"

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