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rear leaf spring install

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Old Nov 26, 2015 | 03:08 PM
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93F150&69Stang's Avatar
93F150&69Stang
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Question rear leaf spring install

When you are installing the rear leaf springs.
1Do u first install the front perches bolt
2. The leaf spring to the rear axle with the ubolts
3. The shackle to the leaf spring
4. Jack the rear of ths frame up and pull down on shackle that's bolts to the leaf spring meet up with the mounting plate on the rear of the truck.
Is that how u do it. ?
 
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Old Nov 26, 2015 | 05:35 PM
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blue924.9
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here is how i have done it with a pickup and a couple trailers.

assuming you have the springs already off.

1. get the springs bolted to the axle and the center pin on the springs lined up to the hole in the spring perch on the axle housing.
2. jack the back axle up so you can get the bolt into the hanger on the end closest to the front of the vehicle. if you are doing one side at a time you only need one jack but if you have the springs off on both sides of the vehicle you will be better off to have a jack on each side of the axle and bring one side up a few pumps and then bring the other side up a few pumps so that the axle goes up nice and straight, if you dont have enough jacks to do this it would help to put the wheel on one side and then jack the other side up, i have had it in trailers where it is impossible to get the bolt into the hole becuase the axle is angled to far.
3. once you get the front bolts in i hand tighten the nuts
4. install the shackle links to the leaf springs and then move the rear axle and frame to where it needs to be, sometimes the frame has to come down and sometimes the axle has to come up, i have had it where there has been a combo of both to get the axle where it needs to go, i have heard of people using ratchet straps or a come along to pull the axle up to if they only have 1 floor jack and are using it to raise and lower the frame. eventually you will get the holes in the shackle links to line up with the rear spring hangers and you can slip the bolt in, it can be a long tedious process and requires some patience. the biggest thing i stress to people is dont force the spring to go somewhere with the jack if it doesnt want to go, i have had the spring slip off the jack and go flying trying to force it with the jack, if it doesnt want to go by itself lower it back down and adjust and try again, leaf springs are dangerous when you start compressing them with a jack and it doesnt take much for them to slip off the jack and create a bad situation either.
 
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Old Nov 26, 2015 | 06:49 PM
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93F150&69Stang's Avatar
93F150&69Stang
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Thanks for the info.
Right now I have both leaf springs bolt to the axle and spring perch. Just need to get the rear bolted up and put my drive shaft back in.
 
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Old Nov 27, 2015 | 03:01 PM
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Is this the correct way to get the rear spring bolted up to the bracket in the rear by jacking up the frame to meet up with it or should I get the front perch bolted up and the rear bracket bolt to the shackle and then bolt it to the axle

 
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Old Nov 27, 2015 | 03:32 PM
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Not answerng your question, but the bolts that go through the spring eyelets with rubber bushings... dont tighten them until everything is together and the weight of thhe truck is on the wheels or they will bind up and fail prematurely.
 
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Old Nov 27, 2015 | 03:57 PM
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Nothing is tighten everything is hand tighten only
 
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Old Nov 28, 2015 | 08:24 AM
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tjc transport
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i usually put the springs on the truck then roll the axle under the springs and set the truck down on the axle to center the pin before bolting everything together.
 
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Old Nov 28, 2015 | 10:18 AM
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That's how I do it too tjc. But then I'm used to working on WAY bigger springs and axles too......LOL
 
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Old Nov 28, 2015 | 01:24 PM
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tjc transport
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yup, same here. a F250 or F350axle for me is a piece of cake.
it gets a little on the hard side when you are trying to roll a 54,000 lb capacity axle under the truck that weighs 5,000 lbs by yourself.
 
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Old Nov 28, 2015 | 01:31 PM
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Thanks guys. I got it done after kicking,pulling,jacking and rolling the axle around I got everything to line up. Now I just got to tighten everything and reinstall my drive shaft. This is a lot more intense then doing the leafs on my 69 mustang
 
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