One more question for the smart guys - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jcentsr6 · 07-30-2007, 04:11 PM

I am at the point to purchase a full disc brake set-up and wheels.

Q1: Will disc brakes change the wheel fitment from drums. Offset I
mean.

The reason I ask...I have a 6 lug set-up now. Thinking of swaping everthng to a 5 lug set-up...but I need to have the wheels here at the same time as brakes get installed to drive out of the shop. I dont have a place to install new brakes and measure everything to order wheels...and let truck sit.

If I measure my 6 lug drums for offset and order wheels based off those measurement (offset) will everything fit.??

I think that it would be within 1/2 an inch of offset....I am installing 18" front and 20" rear so brake clearance should not be an issue.

powell72 · 07-30-2007, 04:23 PM

Disc brakes increase the front track width from drum brakes. I would find some real cheap steel rollers or see if you can borrow a set of wheels to get you out of the shop until you figure out your width and backspacing for the new wheels.

SCOTI · 07-30-2007, 04:38 PM

Drum to disc conversions increase track width about 3/8" per side.

07-30-2007, 04:11 PM	#1
Jcentsr6 Junior Member Join Date: Jul 2007 Location: Odenton, Md Posts: 552	One more question for the smart guys I am at the point to purchase a full disc brake set-up and wheels. Q1: Will disc brakes change the wheel fitment from drums. Offset I mean. The reason I ask...I have a 6 lug set-up now. Thinking of swaping everthng to a 5 lug set-up...but I need to have the wheels here at the same time as brakes get installed to drive out of the shop. I dont have a place to install new brakes and measure everything to order wheels...and let truck sit. If I measure my 6 lug drums for offset and order wheels based off those measurement (offset) will everything fit.?? I think that it would be within 1/2 an inch of offset....I am installing 18" front and 20" rear so brake clearance should not be an issue. __________________ going to sell this one...looking for a SWB project next.

07-30-2007, 04:23 PM	#2
powell72 Senior Member Join Date: Jan 2005 Location: Loveland Co. Posts: 3,098	Re: One more question for the smart guys Disc brakes increase the front track width from drum brakes. I would find some real cheap steel rollers or see if you can borrow a set of wheels to get you out of the shop until you figure out your width and backspacing for the new wheels. __________________ Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html

07-30-2007, 04:38 PM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,947	Re: One more question for the smart guys Drum to disc conversions increase track width about 3/8" per side. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*



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