15" rims on a 78 3/4 ton?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1969 4x4 · 05-06-2004, 09:36 PM

Can anyone tell me if 15" wheels will fit on a 78 3/4 ton 8 bolt pattern???
I am looking to get some rims and wondering if i have to upgrade to 16" rims for this set up>>> it is a Dana 60 rear and a Dana 44 front... Any help is appreciated... thanks in advance....

LONGHAIR · 05-06-2004, 10:46 PM

It will depend on the off-set. They should fit the back with no problem, but if they are not off-set far enough they will rub the calipers in the front.
8lug 15" wheels are a bit odd anyway.

ryanroo · 05-07-2004, 01:00 AM

a few years back a friend and i switched his 85 half ton to a 3/4 using 78 hubs for his dana 44. to fit his eaton 15 inch 8 luggers using the factory calipers we had to grind the calipers and we ended up grinding a little bit of the weld bead off the rim as well. none of it was to excessive and came out fine. ran the set-up for well over a year with no probs. i can't remember the backspacing or anything though.
Ryan

**JIMs70GMC** · 05-07-2004, 05:48 AM

I think you will also have to grind the caliper bracket guides at the top. I can try and fit one of my 15x10 8 lug wheels on my Chevy w/ 71 chassis and see what it looks like. I run 8 lug 15x10s on my 70 GMC because it is all drum. No problems w/ the rear dana 60.

Beast388 · 05-11-2004, 05:21 PM

I have '77 3/4 ton axles on my '71 Burb. I am using 8-lug 15X10 wheels with a 4.25" backspacing. I had to grind on the front calipers quite a bit. I am running rear disks and only had to clean up the casting flash on one of the rear calipers.

Here is a pic of the front.....

05-06-2004, 09:36 PM	#1
1969 4x4 Registered User Join Date: Dec 2002 Location: wisconsin Posts: 75	15" rims on a 78 3/4 ton?? Can anyone tell me if 15" wheels will fit on a 78 3/4 ton 8 bolt pattern??? I am looking to get some rims and wondering if i have to upgrade to 16" rims for this set up>>> it is a Dana 60 rear and a Dana 44 front... Any help is appreciated... thanks in advance....

05-07-2004, 01:00 AM	#3
ryanroo Senior Member Join Date: Apr 2004 Location: sw colorado Posts: 2,720	a few years back a friend and i switched his 85 half ton to a 3/4 using 78 hubs for his dana 44. to fit his eaton 15 inch 8 luggers using the factory calipers we had to grind the calipers and we ended up grinding a little bit of the weld bead off the rim as well. none of it was to excessive and came out fine. ran the set-up for well over a year with no probs. i can't remember the backspacing or anything though. Ryan __________________ 72 K20 12v build 72 K20 "parts truck" A place for your diesel swap questions

05-07-2004, 05:48 AM	#4
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I think you will also have to grind the caliper bracket guides at the top. I can try and fit one of my 15x10 8 lug wheels on my Chevy w/ 71 chassis and see what it looks like. I run 8 lug 15x10s on my 70 GMC because it is all drum. No problems w/ the rear dana 60. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-11-2004, 05:21 PM	#5
Beast388 Suburbans RULE! Join Date: Jan 2000 Location: Clinton, IA 52732 Posts: 689	I have '77 3/4 ton axles on my '71 Burb. I am using 8-lug 15X10 wheels with a 4.25" backspacing. I had to grind on the front calipers quite a bit. I am running rear disks and only had to clean up the casting flash on one of the rear calipers. Here is a pic of the front..... Attached Images __________________ --Ben 71 GMC Suburban 4X4 The "Beast" 388 CID Stroker, TH350, NP205, 8-lug D44, 14BFF w/ Detroit, 4.10:1 gears, 4-Wheel Disks 4" Lift, 35" MT/R's.

05-06-2004, 10:46 PM	#2
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	It will depend on the off-set. They should fit the back with no problem, but if they are not off-set far enough they will rub the calipers in the front. 8lug 15" wheels are a bit odd anyway.



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