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#1 |
Registered User
Join Date: Feb 2004
Location: Arlington, KS
Posts: 15
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I've got a 70 C-10 with the factor 12 bolt rear and 6 lugs. I also have a 74 1/2 ton parts truck with a 12 bolt rear and 5 lugs. Can I swap the 74 axles into the 70 12 bolt housing? Or should I just weld on new mounts and swap the whole diff? Thanks for the help!!
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#2 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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You may be able to do it, might not. All depends on your 70. Some were wide, some were not. All you have to do is pop off the cover and pull the C-clip and give it a shot.
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#3 |
Registered User
Join Date: Jan 2000
Location: Wyoming USA
Posts: 2,445
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HMMMMM
My 70 was a narrow 1 so I had to make a spacer for each side.I have been told they made a wider 1 sometime in 70,thus making it a direct swap.My 69 & 70 r the same size 55 1/2" from backing plate to plate if using the newer axles you might need to use the drums allso I had to. The spacer I used was a homemade 3/4" on each side between the housing & backing plate I used 2) 3/4" steel plates so I could keep it some what sealed.I was lucky enough to use plasma cutter,drill press,4"grinder so it was not hard at all
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2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327 |
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#4 |
Registered User
Join Date: Feb 2004
Location: Arlington, KS
Posts: 15
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Thanks for the replys guys! When I get back in the states I'll have to see what happens, hopefuly it will work.
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#5 |
Registered User
Join Date: Jan 2003
Location: Washington State
Posts: 8,834
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Isn't the 74 a leaf spring setup...?
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1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo |
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#6 |
Registered User
Join Date: Feb 2004
Location: Arlington, KS
Posts: 15
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Blue Beard
74 is a leaf spring setup, but you can buy or torch off the mounts from the 70 and weld onto the 74 housing. I'd just by the new saddles myself. I've found them on the net. |
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#7 |
Registered User
Join Date: Dec 2003
Location: Stockton, CA
Posts: 1,579
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So the spring mounts on a 73 and newer leaf rear end are different than the 67-72 leaf rear ends??
70short/step ![]() |
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#8 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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With no papers here, I have to say I remember some one saying the spring perches are not the same width, nor same distance.
I may well be wrong on this, I have never paid much attention to the leaf spring 1/2 ton stuff. |
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