help plz with rearend - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigblock79 · 11-02-2009, 08:21 PM

is a 14 bolt out of a 75/76 3/4 ton 2wd. is it the same rearend in a earlys 80's 3/4 ton 4wd. whice one better for my crew cab 4x4 im replaceing my dana 70

b454rat · 11-02-2009, 10:21 PM

The 70s will be a better axle, inless the 80s 3/4 is a full floater. I think the only difference is shock mounts, they are longer on a 4wd, but will still work.

bigblock79 · 11-02-2009, 10:39 PM

how to tell a 14 bolt is full or semi floater

Pyrotechnic · 11-02-2009, 11:29 PM

Semi floaters have a small dished hub in the center of the wheel mounting flanges like on a half ton just to center the wheel. Full floaters have a hub that sticks out with bolts in it. On a full floater, the hub and axle shaft are seperate pieces which is the reason for the hub with the bolts in it.

bigblock79 · 11-02-2009, 11:37 PM

got any picture

Pyrotechnic · 11-02-2009, 11:39 PM

http://www.off-roadweb.com/tech/0112...les/index.html

bigblock79 · 11-02-2009, 11:50 PM

both is FF one is in a 75/76 3/4 ton 2 wheel drive and the other is in a 80's 3/4 ton 4 wheel drive

bigblock79 · 11-02-2009, 11:52 PM

i can buy the 2wd for 200.00 and get the pair out of the 4x4 for 400.00

wfomkivdrvr · 11-03-2009, 02:47 AM

niether axle will fit your 1 ton without relocating the spring perches on the axles the 1 ton has a perch center of 40.5 and 3/4 tons have a center of 42.5in unless its in a 3/4 ton CrewCab only exception

b454rat · 11-03-2009, 09:43 AM

Not sure if it matters or not, but go with the 70s 14ff. E-brake cables should be the same on your truck as the 14b, so you could just swap them over. If you dont' need or care bout e-brake, then doesn't really matter. The front axle from the 3/4 will be a 10 bolt, but why would you replace a 60 with a 10 bolt?

bigblock79 · 11-03-2009, 04:45 PM

my 60 is staying in the front be a spare for one of my halfton

11-02-2009, 08:21 PM	#1
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	help plz with rearend is a 14 bolt out of a 75/76 3/4 ton 2wd. is it the same rearend in a earlys 80's 3/4 ton 4wd. whice one better for my crew cab 4x4 im replaceing my dana 70 __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

11-02-2009, 10:21 PM	#2
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,454	Re: help plz with rearend The 70s will be a better axle, inless the 80s 3/4 is a full floater. I think the only difference is shock mounts, they are longer on a 4wd, but will still work. __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS

11-02-2009, 10:39 PM	#3
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: help plz with rearend how to tell a 14 bolt is full or semi floater __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

11-02-2009, 11:29 PM	#4
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: help plz with rearend Semi floaters have a small dished hub in the center of the wheel mounting flanges like on a half ton just to center the wheel. Full floaters have a hub that sticks out with bolts in it. On a full floater, the hub and axle shaft are seperate pieces which is the reason for the hub with the bolts in it. __________________ 1977 GMC Sierra Grande

11-02-2009, 11:37 PM	#5
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: help plz with rearend got any picture __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

11-02-2009, 11:39 PM	#6
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: help plz with rearend http://www.off-roadweb.com/tech/0112...les/index.html __________________ 1977 GMC Sierra Grande

11-02-2009, 11:50 PM	#7
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: help plz with rearend both is FF one is in a 75/76 3/4 ton 2 wheel drive and the other is in a 80's 3/4 ton 4 wheel drive __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

11-02-2009, 11:52 PM	#8
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: help plz with rearend i can buy the 2wd for 200.00 and get the pair out of the 4x4 for 400.00 __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

11-03-2009, 02:47 AM	#9
wfomkivdrvr HORSEPOWER JUNKIE Join Date: Feb 2008 Location: Esparto,CA. Posts: 97	Re: help plz with rearend niether axle will fit your 1 ton without relocating the spring perches on the axles the 1 ton has a perch center of 40.5 and 3/4 tons have a center of 42.5in unless its in a 3/4 ton CrewCab only exception __________________ 67 C20 fleetside custom camper 69 El Camino 72 Camaro 52 Dodge b3b 108 pickup

11-03-2009, 09:43 AM	#10
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,454	Re: help plz with rearend Not sure if it matters or not, but go with the 70s 14ff. E-brake cables should be the same on your truck as the 14b, so you could just swap them over. If you dont' need or care bout e-brake, then doesn't really matter. The front axle from the 3/4 will be a 10 bolt, but why would you replace a 60 with a 10 bolt? __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS

11-03-2009, 04:45 PM	#11
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: help plz with rearend my 60 is staying in the front be a spare for one of my halfton __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11



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