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Front Subframe lowering technique for transmission removal?

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Old 09-12-2011, 08:48 PM
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Default Front Subframe lowering technique for transmission removal?

The bolts holding the subframe to the frame will not loosen. I have tried air gun, breaker bar, and socket wrenches. Here is a pic of the instructions. The second picture is of my actual car and bolts..

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the left bottom bolt is the bolt that will not budge..

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Old 09-12-2011, 08:57 PM
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support around the area of the bolt, use your impactool (air gun) without extension, and use penetrating oil.

gl its a big task
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Old 09-13-2011, 01:01 PM
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Use a 1/2" socket with ratchet attached to a breaker bar. Looks like you're in rusty land so gl.
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Old 09-13-2011, 02:22 PM
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I just did mine, used a 4' piece of pipe as a breaker bar and it loosened up easily. My impact wrench didn't budge them even when running at a full 150 psi. If you think these are tough, wait until you get to the top transmission bolt. That one about broke me.

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Old 09-19-2011, 01:09 AM
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^ For top transmission bolt, use 1/2" extensions with your 1/2" drive + breaker bar and won't be a problem.
It's ok to keep the reducer at the end or even an universal joint.
The issue is always too much twist in the smaller extensions.
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Old 10-03-2014, 07:56 AM
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So there are 3 bolts holding the subframe on each side. Two of them are quite long, and the middle one is shorter. Did you remove the middle one alltogether? I backed the middle one out about 2 inches- still not enough clearance. I don't have a tall enough jack to support the subframe, so I'm afraid of taking the bolt out and having the whole thing drop on me.
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Old 10-03-2014, 09:17 AM
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The steady torque application of a large bar is not the best way to loosen a long fastener... a more powerful impact gun is ideal. I have found on a really tough large bolt I can up the air pressure from my normal at about 80 to 150 a difficult bolt can be removed without damage.
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Old 10-03-2014, 09:37 PM
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I hope you're not trying to remove that bolt with anything less than a 1/2" drive.
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Old 10-03-2014, 10:41 PM
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penetrating oil will definitely help. It did for me.
I also couldn't get it out with a 200 lb ft impact. returned the impact and bought a 350 lb ft milaukee and it did a little better. still returned it because i wanted to pick up a 800 lbft ingersol. lol
What worked even better is a breaker bar with a 4 foot extension. I used the metal bar used on my hydraulic jack and inserted it into my breaker bar. It came off quite easily.
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Old 10-03-2014, 10:44 PM
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Originally Posted by igorien2k View Post
So there are 3 bolts holding the subframe on each side. Two of them are quite long, and the middle one is shorter. Did you remove the middle one alltogether? I backed the middle one out about 2 inches- still not enough clearance. I don't have a tall enough jack to support the subframe, so I'm afraid of taking the bolt out and having the whole thing drop on me.




if there is a harbor freight store near, an you can, go grab a jack that'll reach the sub-frame.. I figure if your going to do the work, get the tools.. cause you'll use them over and over...

remove the middle two bolts completely, seriously, no worries.. the 4 corner bolts are long enough to be lowered the 3 inch drop they claim easy... and measure, don't be " about "
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