Author Topic: Suggestions on lifting the rear to change shackles  (Read 899 times)

FormTA

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Suggestions on lifting the rear to change shackles
« on: May 06, 2021, 03:13:43 PM »
So, I need to swap out my rear spring shackles.  Before I supported the car by the rear crash bar but the car is finished and I'm not using the rear cover to lift. Thinking maybe lift on the subframe connectors.... Ideas?
79 Trans am low buck LS swapped
79 Formula 301 (Work in progress)
67 RS Camaro (waiting it's turn)
69 Dodge charger on late model charger chassis
49 Ford F1 on a 2003 Chevy ZR2 Chassis (current project)
Names, Luke. If I hear anyone telling me they're my father....

Gene-73

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Re: Suggestions on lifting the rear to change shackles
« Reply #1 on: May 06, 2021, 05:49:52 PM »
I've always lifted from the axle/diff and never had a problem. I recently pulled my rear springs and put blocks under the frame rails in front of the wheel wells (next to the spring perch) to support the car while I worked on the springs and shackles.

In my case I was working on a lift so had to deal with an un-even ground surface and only had room for a small floor jack.
Also, I have a set of wheel cribs that I use for blocking things like this. I like them better than jack stands.
Gene


b_hill_86

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Re: Suggestions on lifting the rear to change shackles
« Reply #2 on: May 06, 2021, 05:59:33 PM »
That’s the same spot I used when I swapped my rear axle assembly.
-Brian-

1977 Trans Am 400 4 speed

FormTA

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Re: Suggestions on lifting the rear to change shackles
« Reply #3 on: May 07, 2021, 03:07:52 AM »
Thanks guys. I know it is a basic question but I was just curious as to what others did.

Thanks!
79 Trans am low buck LS swapped
79 Formula 301 (Work in progress)
67 RS Camaro (waiting it's turn)
69 Dodge charger on late model charger chassis
49 Ford F1 on a 2003 Chevy ZR2 Chassis (current project)
Names, Luke. If I hear anyone telling me they're my father....

highway star

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Re: Suggestions on lifting the rear to change shackles
« Reply #4 on: May 07, 2021, 12:03:12 PM »
Jack stand under each axle. Floor jack under the leaf spring being worked on.
Used this method to install lowering shackles on my street truck.

Re: Suggestions on lifting the rear to change shackles
« Reply #4 on: May 07, 2021, 12:03:12 PM »

FormTA

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Re: Suggestions on lifting the rear to change shackles
« Reply #5 on: May 07, 2021, 07:03:17 PM »
That wouldn't work. I need to drop the axel. The jack and stands in your scenario would lift them.
79 Trans am low buck LS swapped
79 Formula 301 (Work in progress)
67 RS Camaro (waiting it's turn)
69 Dodge charger on late model charger chassis
49 Ford F1 on a 2003 Chevy ZR2 Chassis (current project)
Names, Luke. If I hear anyone telling me they're my father....

jonathonar89

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Re: Suggestions on lifting the rear to change shackles
« Reply #6 on: May 08, 2021, 02:33:25 AM »
Lift the car from your differential, put Jack stands under the unibody frame section, keep the rear ended supported with your jack,  unbolt the shackles and lower the rear end with your Jack while the body is still supported by the stands.
Mark's Cars Inc.

https://markscarsinc.com

highway star

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Re: Suggestions on lifting the rear to change shackles
« Reply #7 on: May 08, 2021, 09:36:30 AM »
Sry yeah I did it like Jonathan suggested. Raised diff up/down with floor jack. The tighten after car is sitting on ground.

Re: Suggestions on lifting the rear to change shackles
« Reply #7 on: May 08, 2021, 09:36:30 AM »
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