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#1 |
I know the pieces fit
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
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Rear axle question...
From everything I've read, my 79 2wd Blazer should have a 10-bolt rear but it has a 12-bolt.
Could this be factory? Not that it matters, I'm just happy to have a 12-bolt. But I was plenty surprised. Any chance this axle came stock on the truck? Thanks. |
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#2 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,717
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Re: Rear axle question...
I thought the 10 bolts started showing up in these trucks around 1981-82.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#3 |
Registered User
Join Date: Mar 2008
Location: Lowell, Massachusetts
Posts: 126
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Re: Rear axle question...
I had my 79' on the lift today and it has a 12 bolt as well
and it's definitly the OG rearend! H. |
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#4 |
Registered User
Join Date: Oct 2008
Location: Lake City FL
Posts: 114
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Re: Rear axle question...
me thinks it was about 84 that they started putting the bigger 10" in the trucks blazers,suburbans,etc. A 79 will definitely be a 12-bolt
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The general is always in charge ![]() You guys did this to me!!!!!!!!!!!!!!!!!!!! |
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#5 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,368
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Re: Rear axle question...
The 12 bolt ran from 73-81. The 10 bolt ran from 78-91 So 79 could of gone either way...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#6 |
I know the pieces fit
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
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Re: Rear axle question...
It's a pleasant surprise. 4.10's and an Eaton Posi will go well there and stand up to what I'm putting in front of it.
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#7 |
Low & Fast!
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
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Re: Rear axle question...
12 came in mine and I put a 4.10 in too. Works good, but the the best with a 3 speed like me.
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#8 |
I know the pieces fit
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
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Re: Rear axle question...
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#9 |
Registered User
Join Date: Oct 2008
Location: Lake City FL
Posts: 114
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Re: Rear axle question...
Yeah,that .7 makes a huge difference in rpms!!!
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The general is always in charge ![]() You guys did this to me!!!!!!!!!!!!!!!!!!!! |
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