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Trailing arm question

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Old Aug 31, 2011 | 06:53 PM
  #1  
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Default Trailing arm question

hey guys,

So far I'm basically finished with my trailing arm rebuild...However, I'm looking to buy my own press seeing that i could get a good deal on one and how they could be very convenient with other jobs for the project.

Would any of you guys know the correct amount of pressure I would need to be able to insert the spindle. Im looking to buy a 20 ton press. would that be enough for the spindle installation?

Thanks
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Old Aug 31, 2011 | 07:45 PM
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Originally Posted by CP4209
hey guys,

So far I'm basically finished with my trailing arm rebuild...However, I'm looking to buy my own press seeing that i could get a good deal on one and how they could be very convenient with other jobs for the project.

Would any of you guys know the correct amount of pressure I would need to be able to insert the spindle. Im looking to buy a 20 ton press. would that be enough for the spindle installation?

Thanks
Just to press the spindle bearings takes much less pressure than that.
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Old Aug 31, 2011 | 07:46 PM
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A twenty ton press will push a anything you'll ever need it for. But it won't work for pressing rear spindles out of your car. When you set up a spindle to push it out the pressure falls on the caliper mounting bracket and it will either bend or break that bracket. If you have done one this way and not bent that bracket consider yourself lucky for sure.

You can use the knocker tool but for us, we use the original GM style essential tool.. or rear wheel bearing press.

Last edited by Willcox Corvette; Aug 31, 2011 at 07:50 PM.
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Old Aug 31, 2011 | 09:28 PM
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I've rebuilt trailing arms, 2 differentials, and complete front suspension with a 6-ton press. That said, I saw a coupon in one of my car magazines (Hot Rod? or Car Craft) for a 12-ton press from Harbor Freight for $99.
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Old Aug 31, 2011 | 10:52 PM
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Ralley,

You must be one of the lucky ones then... If the bearings are not super tight on the spindle then I'm sure there is a chance they willl come out. But run up on one that isn't so user friendly and it will bend or brake the caliper mounting bracket. You have to support the arm someway and the only thing there is that cast bracket.

Rear ends.. front end parts a 12 ton will make short work of.

IMHO
Willcox
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Old Sep 1, 2011 | 07:21 AM
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Originally Posted by Willcox Corvette
Ralley,

You must be one of the lucky ones then... If the bearings are not super tight on the spindle then I'm sure there is a chance they willl come out. But run up on one that isn't so user friendly and it will bend or brake the caliper mounting bracket. You have to support the arm someway and the only thing there is that cast bracket.

Rear ends.. front end parts a 12 ton will make short work of.

IMHO
Willcox
Willcox, luck and I have never crossed paths!

Sorry if I was unclear; I removed my spindles with the arms out of the car, using a spindle knocker. Actually, I did use my little h-frame press for the job, but not in the way you might think:





Still amazed at how hard you have to beat on that thing to get it free of the inner bearing.
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Old Sep 1, 2011 | 07:13 PM
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thanks for the advice so far guys. IF you guys say that a 12-ton press can work fine than im thinking of just purchasing that.
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Old Sep 2, 2011 | 10:28 AM
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Ralley,
I would say your lucky as well. Sometimes my 20 ton press will not press out spindles.
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Old Sep 2, 2011 | 09:15 PM
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I did this job many years ago on my '73 just after purchasing it. I used my Fathers hydraulic press with a gauge on it. One side took 10 tons of pressure to come loose, the other side took 30 tons. I don't know when it had last been calibrated, but simply considered it a relative measure.

I do know we were using a 1" steel plate for support and it bent the plate in the process. Fortunately, the press was strong enough that we flipped it over and flattened it right back out...

Good luck... GUSTO
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Old Sep 6, 2011 | 08:46 PM
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OK GUYS,
I'm prepping up for this weekend to finish up the rebuild so that I could mount the arm on the chassis.

Now for measuring the endplay, I wanted to purchase a dial indicator but I've noticed in recent forums that the indicators other people use are electronic "mitutoyo" brand that cost $100+. I do not want to pay that much money for an indicator that I will most likely use once or twice.

Now Can this dial indicator work for the job?
http://www.harborfreight.com/clampin...tor-93051.html

I've noticed in a website that someone used it to measure the rotor runout so i was wondering if they could be used to measure the endplay as well.

Or can I rent one of those mitutoyo indicators from a local auto store like autozone or advance autoparts

Thanks
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Old Sep 6, 2011 | 11:05 PM
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Originally Posted by CP4209
OK GUYS,
I'm prepping up for this weekend to finish up the rebuild so that I could mount the arm on the chassis.

Now for measuring the endplay, I wanted to purchase a dial indicator but I've noticed in recent forums that the indicators other people use are electronic "mitutoyo" brand that cost $100+. I do not want to pay that much money for an indicator that I will most likely use once or twice.

Now Can this dial indicator work for the job?
http://www.harborfreight.com/clampin...tor-93051.html

I've noticed in a website that someone used it to measure the rotor runout so i was wondering if they could be used to measure the endplay as well.

Or can I rent one of those mitutoyo indicators from a local auto store like autozone or advance autoparts

Thanks
In the words of Curly, Swertinly
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Old Sep 7, 2011 | 07:20 AM
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I got this dial indicator and base combo at the local science & surplus but I know they sell the exact same setup at Harbor Freight:



The advantage to the digital meters is they display accurately out to several decimals; with this you have to interpolate between ten-thousandths, but I felt confident my measurements were accurate to within about .0002
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Old Sep 7, 2011 | 02:08 PM
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Hey guys,

in order to finish assembly I need some sort of spindle set up tool to calculate the right endplay for the spindle...

do i need to buy this tool exactly or is there any other way:
http://www.mamotorworks.com/corvette...-157-1402.html
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