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- - Need 12 bolt rear advice (https://67-72chevytrucks.com/vboard/showthread.php?t=579893)

RenoKeene

05-12-2013 11:03 AM

Need 12 bolt rear advice

Looking for compatible 73 and up 12 bolts to bolt up to stock 70 GMC leaf springs. I know
They got wider in 71, it's the saddle and shock mount locations that concern me.
Any info would help.
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INSIDIOUS '86

05-12-2013 01:20 PM

Re: Need 12 bolt rear advice

You will prob have to go the hard way and grind off the leaf pads and move them to a new location. Same with shocks.
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RenoKeene

05-12-2013 05:32 PM

Re: Need 12 bolt rear advice

Kinda figured that, was hoping to avoid it though.
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KrazyRay

05-12-2013 10:49 PM

Re: Need 12 bolt rear advice

The leaf spring pads are in the same location 67-72 2wd and 73 up. The 67-72 4wd are different by about an inch. Also, the 70 6 lug should be the same width as 71-72 5 lug. Are you looking to convert to 5 lug?

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