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05-25-2010, 02:47 PM
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#1 |
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Registered User
Join Date: Apr 2008
Location: Pollock Pines, CA
Posts: 14
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6 to 8 Lug Conversion - Education Needed
Hey guys,
I picked up a full floating 8 lug Dana 60 rear end to put in my '72 K10, and I've been told by a few different people that the stock front axle in this truck can be converted to 8 lug fairly simply by replacing rotors, hubs, etc... Anybody know a complete list of what parts I'll need? Thanks...
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'41 Chevy Special Deluxe Coupe '49 Chevy 3100 Flatbed '52 Chevy Styleline 2dr Sedan '61 Corvair Loadside '63 Pontiac Catalina Safari 9 passenger '65 Mustang Coupe '72 Chevy K10 |
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05-25-2010, 05:17 PM
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#2 |
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Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: 6 to 8 Lug Conversion - Education Needed
Spindles, hubs, and rotors will be needed and can be taken off of any Dana 44 or GM 10 bolt, calipers and lockouts are the same.
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 1949 Five Window, 1973 Step Side, 2000 Z71 Last edited by ghettoluxury; 05-25-2010 at 05:19 PM. |
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05-25-2010, 05:47 PM
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#3 |
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Registered User
Join Date: Apr 2008
Location: Pollock Pines, CA
Posts: 14
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Re: 6 to 8 Lug Conversion - Education Needed
That's about what I thought. As to the spindles: are we talking everything outside of the ball joints, or just the horizontal piece that bolts onto the vertical portion?
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'41 Chevy Special Deluxe Coupe '49 Chevy 3100 Flatbed '52 Chevy Styleline 2dr Sedan '61 Corvair Loadside '63 Pontiac Catalina Safari 9 passenger '65 Mustang Coupe '72 Chevy K10 |
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05-25-2010, 07:18 PM
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#4 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: 6 to 8 Lug Conversion - Education Needed
Everything from spindle (threaded shaft that the wheel bearings ride on) outward. The part that attaches to the ball-joints is called the "Knuckle".
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05-25-2010, 09:16 PM
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#5 |
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Registered User
Join Date: Apr 2008
Location: Pollock Pines, CA
Posts: 14
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Re: 6 to 8 Lug Conversion - Education Needed
Gotcha, thank you!
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'41 Chevy Special Deluxe Coupe '49 Chevy 3100 Flatbed '52 Chevy Styleline 2dr Sedan '61 Corvair Loadside '63 Pontiac Catalina Safari 9 passenger '65 Mustang Coupe '72 Chevy K10 |
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05-25-2010, 09:35 PM
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#6 |
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Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 6 to 8 Lug Conversion - Education Needed
Why must the spindles be swapped on a '72?
When I covered my ’78 from 6 to 8 lugs all I swapped was the backing plates and rotors. I used the same calipers, spindles, wheel bearings, locking hubs….even brake pads. I broke down and got new seals though 
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
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05-26-2010, 05:09 PM
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#7 |
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Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: 6 to 8 Lug Conversion - Education Needed
It is always good 2 grab them GM used 3 different spindles throughout the years and you never know what ones you need till you have the wrong one.
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1949 Five Window, 1973 Step Side, 2000 Z71 |
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05-26-2010, 05:36 PM
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#8 |
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Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 6 to 8 Lug Conversion - Education Needed
I did not know there were three. I only know of 2. One for drum brakes and one for disks. I’ve probably had at least 100 of square 4x4’s torn apart over the years and have only 1 spindle used on squares. Maybe there are few others for older trucks.
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
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05-27-2010, 10:46 PM
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#9 |
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Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: 6 to 8 Lug Conversion - Education Needed
there are 2 different ones for the disc setups and they both have different bearing sizes
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1949 Five Window, 1973 Step Side, 2000 Z71 |
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05-28-2010, 08:08 AM
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#10 |
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Registered User
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
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Re: 6 to 8 Lug Conversion - Education Needed
big and small bearing style I believe... also, the 10-bolts probably have metric banjo bolts on the calipers...
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The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer" |
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05-28-2010, 09:26 PM
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#11 |
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Devil's in the Details
Join Date: Sep 2008
Location: Southern Utah
Posts: 353
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Re: 6 to 8 Lug Conversion - Education Needed
This might help: http://coloradok5.com/8lugconversion.shtml
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'70 K10 Suburban - TBI 454, 4L80E, NP241C, Dana 60 & 44 - The 10+ Year Project Thread Datsun 240Z, 510 2 door and an old Honda motorcycle |
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05-28-2010, 11:49 PM
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#12 |
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Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: 6 to 8 Lug Conversion - Education Needed
Yes the 10 bolts use metric banjo bolts but the calipers are the same for both the 1/2 and 3/4 unless the truck had J code brakes. The trucks with J code brakes had larger diameter pistons (the physical size of the calipers are the same) and ran a Hydro-Boost master cylinder. I am curently running a Dana 60 front and 14 bolt rear and both are equiped with J code front calipers for a 3/4 ton 82 K20.
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1949 Five Window, 1973 Step Side, 2000 Z71 Last edited by ghettoluxury; 05-28-2010 at 11:54 PM. |
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