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Old 11-11-2011, 11:23 PM   #89
k5kev
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Join Date: Apr 2006
Location: Anaheim, CA
Posts: 304
Re: Project: 1972 502 HO 4x4 Suburban

Here are some pics of the front suspension.

I ended up going with 73-87 Tuff Country 2" lift front springs (3 inches longer than 67-72). Installed a DIY4x front shackle hanger 3 inches rearward to fit them in, and then centered the axles with a 1 inch zero rate block and using the 1-1/2" offset. Also used a pair of Offroad Design shackles. With the Dana 60 front I would guestimate this all adds up to a 4" to 4-1/2" lift over stock. Front Spring plates are also DIY4x

Going with the 73-87 springs benefited me in a few ways:

1. By moving the shackle back it helped me clear the 2" primary Bog Block headers.

2. Much softer spring rate than 67-72, not such a harsh ride. Actually these spring are really soft in my opinion, so to help compensate for it I'm running Rancho 9000 adjustable shocks which allows me to tighten up the front end for street driving.

3. Last but not least, I originally had a set of 67-72 4" Tuff Country springs installed, and these along with my 6" lift rear springs would not let the Burb clear my 7' garage door. Can't be parking this baby outside!
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