70lt1 Rear shock bracket removal

[John Fulton, 29200]

Trying to replace bushings in strut rods. What is the trick to getting the shock mount brackets out? They've been soaking in penetrating oil for days, I am starting to wonder if they need to be cut off?

[Tom Buddie]

Special Tool

There is a "special" tool available through aftermarket suppliers that works well for removing the lower shock mount. Ultimately, brute force is effective. Occasionally, I will add heat to help in the process. Be aware that the "ears" on the spindle support can & will snap off if you are not careful. The tool is basically a threaded cap which bottoms out and protects the threads on the shock support. Then, you just pound on the cap. The shock support is "serrated" and is a press fit in the spindle support on the end opposite the nut... that is where it usually hangs up due to rust.

[Joe L.]

Re: 70lt1 Rear shock bracket removal

John----

In extreme case of mount seizure, it may be necessary to sacrifice the shock mount and cut it. This is better than applying too much force and destroying the bearing support ears. As Tom B. advises, try heat first. Get more aggressive as necessary. The mount shaft is a $40 part and still available from GM; the spindle support is no longer available and costs about $75+ used. Then, of course, you have to disassemble and reassemble the trailing arm components.

[John Fulton]

Re: Special Tool

Got it done, thanks for the help.

[Dick W.]

Re: Special Tool

Just an added note to the shock mount removal. A trick that has worked for me several times is to use the threaded driver along with an air hammer with a blunt chisel. Use the chisel against the driver and the added vibrations will sometimes loosen the mount. DO NOT use the chisel against the mount without the driver. It will damage the threaded area. Also DO NOT use chisel against the shock mount shaft. Trust me, it will break the mount. Old proverb; "Been there, done that."