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Front Bushing damage when lifting car
#1
I have a Mohawk lift in my garage. When I lift my '71 Mustang using the car's frame, it destroys the front shock bushing.  
Any suggestions?
I have been taking the nuts off the top of the front shocks before lifting and then reinstalling when complete. A big hassle.

Thanks Tom
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#2
Take a look at this thread.

https://www.7173mustangs.com/thread-ford...er+control

73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

- Jason


[Image: 082-hot-rod-power-tour-2017-1970-1970s.jpg]
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#3
About the first thing in the Ford service manual tells you not to lift with a two post lift unless you block the upper control arms. Everyone blames the bad rubber bushing on the shocks but they are not intended to hold the full force of the coil spring only the gas in the shock. 
If you do not want to make the steel tool I cut some blocks of wood that I lay on top of the frame rail that the upper control arm will rest on. 
It can also split the big bushing in the front cross member with the radius rods. 
If I forget the blocks it crushes the bushings.
I think the other link will get you the details.


When a man is in the woods and talks and no women are there is he still wrong??
Tongue
David
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#4
(09-04-2019, 12:57 PM)Carolina_Mountain_Mustangs Wrote: About the first thing in the Ford service manual tells you not to lift with a two post lift unless you block the upper control arms. Everyone blames the bad rubber bushing on the shocks but they are not intended to hold the full force of the coil spring only the gas in the shock. 
If you do not want to make the steel tool I cut some blocks of wood that I lay on top of the frame rail that the upper control arm will rest on. 
It can also split the big bushing in the front cross member with the radius rods. 
If I forget the blocks it crushes the bushings.
I think the other link will get you the details.


Thank you - the wood worked just fine!   Tom
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#5
So then basically the only type of lift where this doesn't come into play is a drive-on storage type of lift, correct? I guess it would even be an issue when using a floor jack in the front. I'd have to think that many thousands of people could have potentially damaged their bushings without realizing it.
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#6
Yup.  Mine are shot, and I have only had the car up on a lift and/or jack stands a handful of times since 2011 when the suspension was first (re)installed.

I actually need to locate the urethane bushings I picked up so I can swap 'em out - the 'clunking' coming from the front end on less-than-smooth roads has me worried.  I need to quit fartin' around and get those TCP (CPP, Alston, whatever) bolt-in coil-overs and just be done with it.

Eric

[Image: mach1sig2.gif]
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#7
I still try to understand why this happens today... For thirty + years I jacked my Mustangs up, I stored them off the ground, wheels hanging every winter for year’s. Never had a problem. In the last 10 years or so, this issue has raised its ugly head. There is only one reason for this in my mind, inferior rubber components forming part of the shock absorber. They just do not hold up the same as the older manufactured parts did.
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#8
Having just rebuilt the front suspension on my 73 Mach1, and being new to Mustangs, I came across this problem. I purchased a new set of KYB Gas-A-Just front shocks. Bolted one of these onto the spring saddle and found the piston rod was a couple of inches short of the top support. I've never seen this on a vehicle and wasn't keen to see suspension load transferred to a shock tower mount, so went back to the parts store and queried if these were actually Mustang shocks. On checking the catalogue there were two types for the 73 Mustang. The KYB EXCEL-G shocks were the same size as the ones I removed so I exchanged them for these. These went into the front with no problem, hanging from the 2 post hoist, lower control arm resting on the chassis and the shock bolted correctly into the top mount with no strain on any bushes. What have I missed here?
Is this related to heavier springs, competition suspension, etc?
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#9
https://www.summitracing.com/parts/ptp-1.../overview/

For $6, these were the last set I had to buy for my 73 vert. About eight years ago, I had noticed my front shock bushings (purchased from local auto parts store in 'Help' section) were completely destroyed after couple hundred miles of driving, much less lifting front end up. Once the poly ones were installed, that ended that particular issue.
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#10
I also use pieces of wood between the frame and crossmember and it seems to work. It was easier putting new shocks on and its also helps when installing brake line to the caliper since the line has some slack in it.

Also as mentioned, I have to believe that this is an issue for a lot of cars in addition to the mustang.
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