leaf spring questions
Freshman User
Joined: Jan 2010
Posts: 31
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The half ton springs aren't going to have as many leafs as the 3/4 ton but if you were to switch make sure they are the same width. For the front you will need new springs. I am not sure it SD springs fit on a 78 but they make four inch springs then just drop the shackle. Going this big is going to affect you pinion angle and steering so some modifications will be required.
Post Fiend
Joined: Oct 2003
Posts: 6,949
Likes: 1
From: utica il
i believe the f150's came with both 2.5'' and 3'' rear springs, so measure first. if they are 3'' wide, then a set of 4'' front springs would probably make it sit nice. super duty springs work, but are not a simple bolt on. if you aren't into fabricating, just buy the correct front springs for your truck
Thread Starter
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New User
Joined: Apr 2009
Posts: 4
Likes: 0
From: ironwood
my 1/2 ton rear spring are 3" and have 5 leaves i'm not looking for towing capacity so if they hold up a 1/2 ton they'll hold up a 3/4 ton. as for the front springs if a man didn't want to lower the shackles and bought 6" front springs how much height difference f/r would there be? i was thinking if its higher in the front to flip the rear shackles and adding a shorter block or if it's higher in the rear either using a shorter block or removing it completely.
