High Boy Rear Spring Question
Thread Starter
|
New User
Joined: Aug 2002
Posts: 10
Likes: 0
High Boy Rear Spring Question
I am in the middle of a frame-off resto on my '75 F250 High Boy, and I don't think the rear leaf springs I have are the correct ones. They seem to be much too soft. One has a broken leaf also, so want to make sure I replace them with springs of the proper size and rate.
Here's what I know - the springs on the truck today are from a 1967 truck (C7TA), and they are 2 1/4" wide. They have 5 leaves and it looks like one of those aftermarket helper leaves at the bottom. I know that some 1975 F250's had a 3" wide spring, but my spring mounting brackets will only fit a 2 1/2" wide spring max.
What was the original spring used on this application - width, # of leaves, etc. Also, how many blocks are standard between the spring and the axle? It looks like mine may have an extra set of "homemade" blocks.
Any help would be appreciated.
Thank you!
Here's what I know - the springs on the truck today are from a 1967 truck (C7TA), and they are 2 1/4" wide. They have 5 leaves and it looks like one of those aftermarket helper leaves at the bottom. I know that some 1975 F250's had a 3" wide spring, but my spring mounting brackets will only fit a 2 1/2" wide spring max.
What was the original spring used on this application - width, # of leaves, etc. Also, how many blocks are standard between the spring and the axle? It looks like mine may have an extra set of "homemade" blocks.
Any help would be appreciated.
Thank you!
Posting Guru
Joined: Sep 2003
Posts: 1,192
Likes: 1
From: lino lakes, mn
it depends on the suspension pkg my 75 has 9 leaves 7700 pkg
my 76 has 6 leaves and an over load that has the 6850 pkg new springs are still available the broken leaf believe it or not was probablet caused by the springs being to stiff not soft. if you want a decent ride go with the lighter pkg. I put the hds on my 75 it'll pound the snot outa me and my truckand makes it tuffer to drive on moderatly ruff terrain but i usually carry 1000 lbs of sand in the winter when i use my plow so i need the spring then. so IMO
unless it's gonna be a work truck a lighter sping works better
my 76 has 6 leaves and an over load that has the 6850 pkg new springs are still available the broken leaf believe it or not was probablet caused by the springs being to stiff not soft. if you want a decent ride go with the lighter pkg. I put the hds on my 75 it'll pound the snot outa me and my truckand makes it tuffer to drive on moderatly ruff terrain but i usually carry 1000 lbs of sand in the winter when i use my plow so i need the spring then. so IMO
unless it's gonna be a work truck a lighter sping works better
Last edited by plowpusher; Nov 21, 2003 at 09:49 AM.
