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Old 02-03-2003, 12:07 PM
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Question Best way to change subframe bushings.

I want to change my subframe bushings on my 77 Trans am. What is the best way to do this?

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Old 02-03-2003, 04:40 PM
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one side at a time, be careful not to screw up the factory frame to body alignment.
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Old 02-04-2003, 09:40 AM
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Factory body alignment: what do you mean by that? I need more information.
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Old 02-04-2003, 11:09 AM
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See if I got it straight, you've got a '77 TransAm and want to change the bushings on the front upper and lowere control arms? Best bet is to get a Haynes or Chilton manual and read up on it. You'll need to get a coil spring compressor and BTW this procedure is somewhat dangerous if you never have used one before. IMO if you're replacing bushings, replace the tie rod ends and ball joints (you'll need to buy or rent a ball joing tool). With the proper tools it'll be at least a four hour job if not more.

If however, you're referring to replacing the body bushings, the repair manuals I mentioned above will outline the procedure.
Good luck.
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Old 02-04-2003, 11:27 AM
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[quote]Originally posted by Hot Rod/SS:


<strong>Factory body alignment: what do you mean by that? I need more information.</strong><hr></blockquote>

There is an adjusment that can be made between the subframe and apron rails to correct or allow for four wheel alignment. It is set correctly at the factory.

The easiest way to change the bushings is to suspend the engine/trans from the upper sheet metal, but this requires a special service tool (expensive). As Bob has said, lower one side slighly at a time with an hydraulic floor jack. You might find it easier to do the front, then rear. Lower the sub-frame only enough to allow removal of the upper mounts. Don't let it get away from you and don't lay underneath it!

Just make sure it goes back into the position it came from (old bushing marks on the rails). Tighten the retaining bolts (make sure in good condition) to the correct torque value. Check rack mounting hardware while it is down.
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Old 02-05-2003, 09:45 AM
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Thanks for all the help guys I now know what you guys are talking about with the factory alignment. I appreciate the help.
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