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11-24-2017, 02:07 PM
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#1 |
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Registered User
Join Date: Sep 2016
Location: Morrice, MI
Posts: 155
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1987 GMC 3/4 Ton Truck Axle ID
Hello, I recently picked up a 1987 GMC 3/4 ton parts truck. I was wondering if anyone could help me to identify what axles these are, and what gear ratio they have. The front axle has dual shocks if that helps. The front axle has 10 bolts, and the rear has 14. Thanks
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11-24-2017, 03:01 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: 1987 GMC 3/4 Ton Truck Axle ID
gt5 =4.10.....the g80 means it has a govlok diff in rear
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver Last edited by mongocanfly; 11-24-2017 at 03:43 PM. |
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11-24-2017, 03:21 PM
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#3 | |
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Registered User
Join Date: May 2012
Location: horseheads,ny rust belt
Posts: 2,794
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Re: 1987 GMC 3/4 Ton Truck Axle ID
Quote:
nope half wrong for this vintage . corp 10 bolt front . note the ear tabs on the lower section of the diff . and rear yes is 14bolt but its a semi floater axle 9.5" gear . not the big boy full floater 10.5" gear .
__________________
77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
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11-24-2017, 03:23 PM
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#4 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: 1987 GMC 3/4 Ton Truck Axle ID
haha...at least I was half right...I was having trouble id'ing that rear cover ..missed the ears on the front...I blame it on bad eyes and a small screen..haha
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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11-24-2017, 06:42 PM
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#5 |
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Registered User
Join Date: Sep 2016
Location: Morrice, MI
Posts: 155
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Re: 1987 GMC 3/4 Ton Truck Axle ID
Thanks for the info. Still need to get parts for my other Blue 87 GMC, and now I can put the axles on Craigslist. Thanks again for the info
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11-24-2017, 11:56 PM
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#6 |
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Registered User
Join Date: May 2012
Location: horseheads,ny rust belt
Posts: 2,794
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Re: 1987 GMC 3/4 Ton Truck Axle ID
no problem 2x
__________________
77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
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