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Username Post: 56 BA rear spring change        (Topic#350641)
Brian D from NJ 
Senior Member
Posts: 561
Brian D from NJ
Loc: Riverside, New Jersey
Reg: 04-28-04
04-15-18 05:37 PM - Post#2731094    

I'm looking to replace the rear springs on my Bel Air because it really sits too low in the back. I don't know what kind of life it previously led, but they look tired.

I just want to know what I'm in for if I do this myself or at least have a friend help.

I'm looking just to level it out and not adopt a "snowplow" look. I'm also not interested in airbags, either.

Thanks

Just because your car/truck was "Made In America" doesn't mean it's American made... think about it. Buy American First.


 

Bad56Sedan 
"11th Year" Gold Supporting Member
Posts: 930
Bad56Sedan
Loc: Pasadena, Texas
Reg: 04-29-04
04-15-18 07:18 PM - Post#2731106    
    In response to Brian D from NJ

'56 two door BA sedan.
I'm replacing mine also.
Original re-arched 4 leafs currently in the car.
They have been out of the car several times.
Have a set of 5 leafs from one of the CT advertisers I need to sand blast and paint.
Now is the time to replace the u bolts and front eye let bolt and the bushing in the rear shackle bracket.
Hang a string/weight from one of the wheel studs on both sides of the drums to the ground and measure where the rear axle is really sitting.
I suggest support the whole back of the car equally and change one leaf at a time.
It is possible to have the rear axle moved slightly to one side or the other when doing both at the same time.








VC56S 2 door Sedan, 38 Years



 
Gene_Schneider 
Ultra Senior Member
Posts: 12138
Gene_Schneider
Loc: Wisconsin..USA
Reg: 09-27-02
04-15-18 07:41 PM - Post#2731112    
    In response to Bad56Sedan

Depending on body style I would stay with 4 leaf.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible


 
Brian D from NJ 
Senior Member
Posts: 561
Brian D from NJ
Loc: Riverside, New Jersey
Reg: 04-28-04
04-15-18 07:49 PM - Post#2731115    
    In response to Bad56Sedan

Gotcha, thanks for your response.
Brian

Just because your car/truck was "Made In America" doesn't mean it's American made... think about it. Buy American First.


 
YOUNG57 
Frequent Contributor
Posts: 1049

Loc: Tennessee
Reg: 12-06-10
04-16-18 06:09 AM - Post#2731135    
    In response to Brian D from NJ

I suggest you support the car by the frame so the weight of the car is off the tires but the tires are still on the ground so you don’t have to handle the weight of the differential. The new springs should have a new front eye bushings but you should replace the rear shackle bushings. The front bushing bolts and U-bolts should not need replacing but check the rear shackle for excessive wear and replace if needed. The springs have guide pins to locate the differential front to rear and side to side. Use a torque wrench to properly tighten the U-bolts so as not to distort the differential tubes.



 
Brian D from NJ 
Senior Member
Posts: 561
Brian D from NJ
Loc: Riverside, New Jersey
Reg: 04-28-04
04-16-18 07:40 AM - Post#2731146    
    In response to YOUNG57

YOUNG57

Thanks, I've already supported the frame with the tires touching the ground you suggest and it does seem a bit more safe than just letting the axle hang free.

Just because your car/truck was "Made In America" doesn't mean it's American made... think about it. Buy American First.


 
acardon 
Ultra Senior Member
Posts: 11020
acardon
Loc: DFW TEXAS
Reg: 03-25-05
04-16-18 08:12 AM - Post#2731153    
    In response to Brian D from NJ

I don't see how you can get under it with the tires on the ground. You can support the axles on jack stands, then lift the frame to relieve the tension on the spring and put jacks stands under it.
As mentioned, the aligning pins locate the axle in both directions.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
Bad56Sedan 
"11th Year" Gold Supporting Member
Posts: 930
Bad56Sedan
Loc: Pasadena, Texas
Reg: 04-29-04
04-16-18 08:36 AM - Post#2731160    
    In response to Brian D from NJ

It gets kinda funny trying to describe things sometimes, then you realize you folks are not standing here with me seeing my hand motions as I talk about it.
But as someone posted, yes remove the rear wheels, it will make it easier.
You want the rear axle hanging mid air so the springs are unloaded.
Then with blocks or something holding the rear axle in that position, then undo the u-bolts, before you remove the rear shackle.
You should be able to tell it is unloaded, the rear shackle bracket will pull or can be pushed out with some effort.
Never put your hands in harms way.
Then remove the front spring eyelet bolt.
Like I said in my previous post marking the axle with a string/weight on the floor will help get the rear axle centered back where it was to begin with.
Makes it sound so easy doesn't it, I can hardly wait to pull mine out again.
4-5 leaf springs, read what those that sell them say about them, but that's your choice, still they are both real fun to replace! It's not that bad.

VC56S 2 door Sedan, 38 Years



Edited by Bad56Sedan on 04-16-18 08:55 AM. Reason for edit: No reason given.

 
warpwr 
"12th Year" Gold Supporting Member
Posts: 943
warpwr
Loc: Santa Clara, CA
Reg: 04-11-06
04-16-18 11:05 PM - Post#2731246    
    In response to Brian D from NJ

I would recommend Posies Super Slide replacement 4 leaf stock ride height springs. I just replaced the 5-leaf setup on mine with 4-leaf (stock) Posies and am more than satisfied with the ride and the height.
They are USA made which should be one of your primary considerations. Most of the overseas parts are not up to our expectations I think you would agree.
They also make 5 leaf and/or in lowered versions.
I've had mine in and out several times trying different setups. I don't hot rod around much anymore and am now more concerned with ride comfort than keeping the rear wheels planted.
The rear springs are not that hard to work on and replace.
Good luck.

Vaughn
56 Delray 327, 5 spd



 
Brian D from NJ 
Senior Member
Posts: 561
Brian D from NJ
Loc: Riverside, New Jersey
Reg: 04-28-04
04-17-18 08:06 AM - Post#2731279    
    In response to warpwr

"They are USA made" Thank you for mentioning that.

Just because your car/truck was "Made In America" doesn't mean it's American made... think about it. Buy American First.


 
Rick_L 
Honored Member
Posts: 27385
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
04-17-18 11:01 AM - Post#2731295    
    In response to Brian D from NJ

I'm not sure if the procedure is clear yet.

Jack the car up and support the frame with jack stands placed near the front spring mounts. Remove the wheels. Do one spring at a time. After the u-bolts on one side are removed, support the axle housing with a jack or jack stand so that it doesn't contact the spring. Then you can remove the spring at the rear first then the front. You can then bolt up the new spring front and back, and lower the housing onto to the spring center bolt.



 

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