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07-12-2019, 10:34 PM
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#1 |
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Registered User
Join Date: Oct 2015
Location: Upstate, the real New York
Posts: 5
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8 lug rear end
Are the 3/4 and 1 ton(single tire) 8 lug rear axles the same ???
Do they vary from 2 wheel drive to 4 wheel drive ??? |
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07-12-2019, 10:38 PM
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#2 |
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Registered User
Join Date: Oct 2009
Location: .
Posts: 2,187
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Re: 8 lug rear end
On the 3/4 ton, some were semi float and some were full float. The big block trucks and the crew cabs got full floats
All of the 1 ton trucks had the full float. |
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07-13-2019, 01:32 PM
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#3 |
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Registered User
Join Date: Dec 2018
Location: Farmington NM
Posts: 113
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Re: 8 lug rear end
3/4 tons and one tons have different brake setup the one ton has wider shoes so the backing plates have a dish shape and the 3/4 ton are more flat
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07-13-2019, 10:52 PM
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#4 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 8 lug rear end
Diesel 3/4t also got the full-floater. I know the 5spd ones did.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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07-13-2019, 11:58 PM
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#5 |
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At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,322
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Re: 8 lug rear end
The 454 8600 gvw crew cab did too
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" That didnt make it any newer " " Dont antique the equipment " |
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07-14-2019, 10:46 PM
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#6 |
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Registered User
Join Date: Apr 2012
Location: Chatt Tn
Posts: 987
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Re: 8 lug rear end
my 84 diesel 3/4 had a semi-float. it was a 4 speed. no such thing as a 5 speed in a square unless it was bigger than a ton.
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88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535 |
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07-15-2019, 01:13 AM
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#7 |
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Registered User
Join Date: Oct 2015
Location: Upstate, the real New York
Posts: 5
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Re: 8 lug rear end
Are the gas 3/4 ton 2wd and 4wd 8 lug (semi) rear ends the same ???
Last edited by ford35lh; 07-15-2019 at 01:18 AM. |
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07-18-2019, 06:57 PM
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#8 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,148
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Re: 8 lug rear end
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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07-26-2019, 11:40 PM
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#9 | |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 8 lug rear end
Quote:
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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07-31-2019, 09:06 PM
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#10 | |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 5,022
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Re: 8 lug rear end
Quote:
High GVWR 3/4 and SRW 1 ton can have the same size brakes. JB5 = Vacuum booster JD5 = Hydroboost JB6 = Vacuum booster JD6 = Hydroboost JB7 = Vacuum booster JD7 = Hydroboost JB8 (single wheel) = Hydroboost JB8 (dual wheel) = Hydroboost JF9 = Hydroboost xx6 uses 11.15 x 2.75 Duo-Servo drums xx7 and xx8 use 12.5 x 1.26 rotors... except JB8 with dual rear wheels that has 12.5 x 1.5 rotors. xx7 has 13 x 2.5 rear drums xx8 has 13 x 3.5 rear drums JF9 has 13.86 x 1.435 front rotors and 13.58 x 1.435 rear rotors
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And please let us know if and how your repairs were successful. |
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