Another lift question

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shiftpro

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I have to go with bucket on this one , properly installed rear lift blocks ,(as long as they are not to tall) , are fine. I have had many 4x4 lifted square's over the years and 90% of them had lift blocks in the rear.My 77 crew cab is not a wheeler , (mall queen) , but it has a hog block putting out 478 hp with blocks in the rear and 44 inch rubber and I love doing burnouts in it all the time,(people **** seeing big rubber get loose), with no problems. My 77 stepside with a 425 hp smallblock and 38's had rear blocks and it was beat through , mud bogs , deep snow , (I live at 6,000 feet), sand mountain in nevada , its hole life with out one block problem. When I first put it together it had a wheel hop problem , so I shimmed the pinion down 2 degree's and the hop was gone.

My son and I are building a 84 blazer for rock crawling right now and it came with 8 inch lift springs in the rear , we are throwing those in the trash and going with a shackle flip and a flat spring with blocks in the rear , (works way better all around than a high arc spring and no blocks) , so he can clear 40 inch mtz's.

So all the years and all the lifted square's I have had , (stout power , big rubber , bashing them off road) , never one rear block failure. Also in the 70's and 80's and now , fords and dodge's had blocks from the factory and I am sure some dude's beat the crap out of them off road and put hot motors in them with out block failure.

So for me I would take a small rear block and a flatter spring for a sweet ride and more flex than no blocks and a add a leaf or a higher arc spring for a worse ride and less flex.

In all fairness I have to prop up your very last sentence. High arc springs just don't flex like flat springs. That's where a shackle reversal shines. But certainly a lot more work than a block and then the pinion angle needs to be addressed, and that could mean cutting rewelding the perches.
As you well know.... regarding the Blazer you and your lucky son are building.
 

hirschdalechevy

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In all fairness I have to prop up your very last sentence. High arc springs just don't flex like flat springs. That's where a shackle reversal shines. But certainly a lot more work than a block and then the pinion angle needs to be addressed, and that could mean cutting rewelding the perches.
As you well know.... regarding the Blazer you and your lucky son are building.
In all fairness I have to prop up your very last sentence. High arc springs just don't flex like flat springs. That's where a shackle reversal shines. But certainly a lot more work than a block and then the pinion angle needs to be addressed, and that could mean cutting rewelding the perches.
As you well know.... regarding the Blazer you and your lucky son are building.


Thanks for the reply back , the rule I go by is my kids have to have at least one cool square in there car line up , my son wants a wheeler and my girls 78 is mostly a mall queen , plus I love working as a team building them.

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shiftpro

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Thanks for the reply back , the rule I go by is my kids have to have at least one cool square in there car line up , my son wants a wheeler and my girls 78 is mostly a mall queen , plus I love working as a team building them.

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You're obviously a great father. Your kids are lucky, and you are blessed. Thanks for sharing. Awesome.
 

theblindchicken

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87silveradok20

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@87silveradok20 Decided yet on how you're gonna do the lift?
I'm thinking about running 3/4 ton lift springs with airbags so I can have towing capacity when I want it and not so bad of a ride when I want that


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theblindchicken

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I'm thinking about running 3/4 ton lift springs with airbags so I can have towing capacity when I want it and not so bad of a ride when I want that

Sounds like you've got a pretty good plan set
 

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