axle measurement - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Goplay2 · 11-01-2004, 04:48 PM

on a 1970 4x4 what is the axle measurement from inside brake drum

and what is the rear? help please

**JIMs70GMC** · 11-01-2004, 08:26 PM

Are you talking WMS to WMS?

Goplay2 · 11-02-2004, 12:03 PM

inside brake to inside brake,

Goplay2 · 11-09-2004, 05:35 PM

if someone could go measure there front and rear axle, it would really help.

Robert1970C20rstbukt · 11-09-2004, 06:42 PM

On mine from backing plate to backing plate, it's about 51 3/4". The axle in mine is the Eaton HO52, but mine's a 2wd. I don't know if it's different for a 4wd or not. I just know that 4wd's had leafs in the rear, mine has coils.

DennyB · 11-09-2004, 07:03 PM

I do believe that '70 was the change over year and had two widths of rear axles installed. one matched the 69- and one matched the71+.
The earlier years were about 3/4" +- less.

**JIMs70GMC** · 11-11-2004, 08:59 PM

Something I found: (not year specific)

GM Dana 60 front (single wheel) ...................69"

GM Dana 60 front (dual rear wheel) ..............77" ; +4" on each side vs single wheel

GM 14 Bolt rear FF (single wheel) ....................67"

GM 14 Bolt rear FF (dual wheel)........................63"

GM 14 Bolt rear SemiF (single wheel) ..............66"

GM Dana 44 Front (single wheel) ..............69"8-lug; 67" 6-lug

GM 10 bolt front (single wheel) ..............69" 8"lug; 67" 6-lug

GM 14 Bolt rear (Van single wheel) ...............70"

GM 10 & 12 bolt rear ..................... 65"

The rear axle that changed were the 2wd's when they went from 6 lug to 5 lug did not apply w/ 3/4 tons and 4wds.

Goplay2 · 11-12-2004, 01:03 AM

thanks, i look at that. i was told or read somewhere, that on the front d44 of a 1/2 that the spring perch were 32.5"?? i dont know if that right. the one i have is 1970 and i measure 31". if someone know that it might help too.

RainFade · 11-14-2004, 07:41 PM

Would anyone have the distance between the center of the spring pads on the 67-72 rear leaf spring axles ?

THANKS

11-01-2004, 04:48 PM	#1
Goplay2 Registered User Join Date: Oct 2004 Location: Dallas, TX Posts: 104	axle measurement on a 1970 4x4 what is the axle measurement from inside brake drum and what is the rear? help please

11-01-2004, 08:26 PM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Are you talking WMS to WMS? __________________ 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

11-09-2004, 05:35 PM	#4
Goplay2 Registered User Join Date: Oct 2004 Location: Dallas, TX Posts: 104	help if someone could go measure there front and rear axle, it would really help. Attached Images

11-09-2004, 06:42 PM	#5
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	On mine from backing plate to backing plate, it's about 51 3/4". The axle in mine is the Eaton HO52, but mine's a 2wd. I don't know if it's different for a 4wd or not. I just know that 4wd's had leafs in the rear, mine has coils. __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck

11-09-2004, 07:03 PM	#6
DennyB Led Sled! Discs R 4 ME! Join Date: Jan 2001 Location: Toms River, NJ, USA (Transplanted Hoosier) Posts: 7,327	I do believe that '70 was the change over year and had two widths of rear axles installed. one matched the 69- and one matched the71+. The earlier years were about 3/4" +- less. __________________ "Never ride faster than your Angel can fly" I.M.O.M,W,J&C Patriot Guard Rider

11-02-2004, 12:03 PM	#3
Goplay2 Registered User Join Date: Oct 2004 Location: Dallas, TX Posts: 104	inside brake to inside brake,

11-11-2004, 08:59 PM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Something I found: (not year specific) GM Dana 60 front (single wheel) ...................69" GM Dana 60 front (dual rear wheel) ..............77" ; +4" on each side vs single wheel GM 14 Bolt rear FF (single wheel) ....................67" GM 14 Bolt rear FF (dual wheel)........................63" GM 14 Bolt rear SemiF (single wheel) ..............66" GM Dana 44 Front (single wheel) ..............69"8-lug; 67" 6-lug GM 10 bolt front (single wheel) ..............69" 8"lug; 67" 6-lug GM 14 Bolt rear (Van single wheel) ...............70" GM 10 & 12 bolt rear ..................... 65" The rear axle that changed were the 2wd's when they went from 6 lug to 5 lug did not apply w/ 3/4 tons and 4wds. __________________ 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 Last edited by JIMs70GMC; 11-11-2004 at 09:24 PM.

11-12-2004, 01:03 AM	#8
Goplay2 Registered User Join Date: Oct 2004 Location: Dallas, TX Posts: 104	thanks, i look at that. i was told or read somewhere, that on the front d44 of a 1/2 that the spring perch were 32.5"?? i dont know if that right. the one i have is 1970 and i measure 31". if someone know that it might help too.

11-14-2004, 07:41 PM	#9
RainFade Registered User Join Date: Nov 2004 Location: Central Ohio Posts: 215	Would anyone have the distance between the center of the spring pads on the 67-72 rear leaf spring axles ? THANKS

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