So I started the disk swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cojnit · 02-08-2007, 01:08 PM

ON the suburban, the front is now five lug and the rear is six. Any ideas what is the best fix for this? I was thinking I could pull the rear shafts and have them redrilled for five lug maybe at a machine shop of some sort.

Also anyone know what the 5 lug pattern size is? I tried a rim off of a 67 chevelle, and the lugs were just a bit wider than the rim hole pattern. I am guessing this means I have a 5x5 as opposed to a 5x4.something...

boraxman · 02-08-2007, 01:26 PM

Yup 5x5 bolt patteren, You coud redrill the axles or swap them out for 5 lug axles.

If you swap them make sure the lenghts are correct.

Fred T · 02-08-2007, 02:03 PM

If the rear is 10 bolt 3.73 gears I would find a newer with 5 bolts axles and better gears.

krue · 02-08-2007, 05:03 PM

What year burb is it? Mid 70's (trucks anyways) the rears were wider (same as 71 up) so that if yours is a 70 you have a chance that you just need to swap some 5 lug axles into the rear and be good to go.

BowTieOgre · 02-08-2007, 05:05 PM

Quote:

Originally Posted by krue

What year burb is it? Mid 70's (trucks anyways) the rears were wider (same as 71 up) so that if yours is a 70 you have a chance that you just need to swap some 5 lug axles into the rear and be good to go.

Where can i find that measurement at Krue...I remember seeing it somewhere but cursory searches have been fruitless.

krue · 02-08-2007, 05:15 PM

Gimme a minute to go measure mine.

krue · 02-08-2007, 05:18 PM

~58.5" backing plate to backing plate, which means the earlier rears are about 57" backing plate to plate.

cojnit · 02-08-2007, 05:22 PM

yeah mine is a 69, so I guess that means 57"

Tycoon4u · 02-08-2007, 06:24 PM

Not necessarily mine is a 68 and 71 axles fit perfectly. Go measure them

cojnit · 02-09-2007, 02:24 AM

New problem. I removed the drum spindles and the rest of the stuff. when I went to fit the disk spindle on I found that the ball joints didnt fit. I figured it was a disk/drum discrepency.

So I go pick up a set of ball joints that are supposed to be for the right era disk set-up... get the otherones drilled out, install the new ones and nothing. they dont fit either. Now supposedly this set up was off of one of these trucks (67-72). I am starting to think not.

Is there a simple way to tell? maybe it is off of a 73 era.

otherwise is there some conversion to be done?

Also I am thinking I can just change the rotors on the disks to be 6 lug, cant I?

02-08-2007, 01:08 PM	#1
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	So I started the disk swap ON the suburban, the front is now five lug and the rear is six. Any ideas what is the best fix for this? I was thinking I could pull the rear shafts and have them redrilled for five lug maybe at a machine shop of some sort. Also anyone know what the 5 lug pattern size is? I tried a rim off of a 67 chevelle, and the lugs were just a bit wider than the rim hole pattern. I am guessing this means I have a 5x5 as opposed to a 5x4.something... __________________ Got "the Midas Touch!"

02-08-2007, 01:26 PM	#2
boraxman Keepin an eye out Join Date: Feb 2003 Location: So.Cal Posts: 3,921	Re: So I started the disk swap Yup 5x5 bolt patteren, You coud redrill the axles or swap them out for 5 lug axles. If you swap them make sure the lenghts are correct. __________________ 1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351

02-08-2007, 02:03 PM	#3
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Re: So I started the disk swap If the rear is 10 bolt 3.73 gears I would find a newer with 5 bolts axles and better gears. __________________ Fred There is no such thing as too much cam...just not enough engine.

02-08-2007, 05:03 PM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: So I started the disk swap What year burb is it? Mid 70's (trucks anyways) the rears were wider (same as 71 up) so that if yours is a 70 you have a chance that you just need to swap some 5 lug axles into the rear and be good to go. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

02-08-2007, 05:15 PM	#6
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: So I started the disk swap Gimme a minute to go measure mine. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

02-08-2007, 05:18 PM	#7
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: So I started the disk swap ~58.5" backing plate to backing plate, which means the earlier rears are about 57" backing plate to plate. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

02-08-2007, 05:22 PM	#8
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	Re: So I started the disk swap yeah mine is a 69, so I guess that means 57" __________________ Got "the Midas Touch!"

02-08-2007, 06:24 PM	#9
Tycoon4u Tooloose Join Date: May 2005 Location: Jonesboro, IL Posts: 280	Re: So I started the disk swap Not necessarily mine is a 68 and 71 axles fit perfectly. Go measure them __________________ A legend in my own mind!!! website: http://www.persmedequip.com/ '68 c10 (current project) http://67-72chevytrucks.com/vboard/s...ht=cherry+bomb '04 silverado (better halfs) '07 wildcat 27rlwb(for sale) http://67-72chevytrucks.com/vboard/c...llinois&cat=17

02-09-2007, 02:24 AM	#10
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	Re: So I started the disk swap New problem. I removed the drum spindles and the rest of the stuff. when I went to fit the disk spindle on I found that the ball joints didnt fit. I figured it was a disk/drum discrepency. So I go pick up a set of ball joints that are supposed to be for the right era disk set-up... get the otherones drilled out, install the new ones and nothing. they dont fit either. Now supposedly this set up was off of one of these trucks (67-72). I am starting to think not. Is there a simple way to tell? maybe it is off of a 73 era. otherwise is there some conversion to be done? Also I am thinking I can just change the rotors on the disks to be 6 lug, cant I? __________________ Got "the Midas Touch!"



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