C2-crossmember cushions/bushings

[Jack J.]

Other than a hydraulic press,any other suggestions on their removal? And what is the tap size for the bolt that goes through them? Thank You

[Edward J.]

Re: C2-crossmember cushions/bushings

Jack, A hyd. press will make the job a piece of cake. any other way may damage the new bushings when pressing in, and the removel of the old ones will not be easy after stilling and rusting for 40+ years.

If you have a auto parts store that may have a press, they may install for you. of a automotive machine shop.

Tap side I BELIEVE IS 7/16-20 THREADS PER INCH

[Joe L.]

Re: C2-crossmember cushions/bushings

Jack, A hyd. press will make the job a piece of cake. any other way may damage the new bushings when pressing in, and the removel of the old ones will not be easy after stilling and rusting for 40+ years.

If you have a auto parts store that may have a press, they may install for you. of a automotive machine shop.

Tap side I BELIEVE IS 7/16-20 THREADS PER INCH

Edward and Jack-----

The bolts which retain the differential crossmember to the frame are 7/16-14 X 1-1/8". So, you need a 7/16-14 tap.

Removing the old crossmember cushions can be a BIG pain. However, I'd be reluctant to let "any old" machine shop do it. They might do as much damage to the crossmember as anyone else. I'd either do it myself or engage the services of a Corvette-experienced shop to do it.

[Wayne M.]

Re: C2-crossmember cushions/bushings

Other than a hydraulic press,any other suggestions on their removal? And what is the tap size for the bolt that goes through them? Thank You

Jack -- I see your profile lists a '64. Be aware that '63's, '64's and '65s up to VIN 5S116517 had mounts with only 4 retaining tabs. After that, a newly designed mount, #9743971, with 8 tabs was installed. This is detailed in TSB # 1174, dated Nov 29, 1965.

This feature is easily seen during judging (that is, if they care to look).

[Wayne W.]

Re: C2-crossmember cushions/bushings

Air chisel under the lip, makes quick work. The rubber needs to be loose from the shaft though. A little fire can do that.

[John H.]

Re: C2-crossmember cushions/bushings

Jack -- I see your profile lists a '64. Be aware that '63's, '64's and '65s up to VIN 5S116517 had mounts with only 4 retaining tabs. After that, a newly designed mount, #9743971, with 8 tabs was installed. This is detailed in TSB # 1174, dated Nov 29, 1965.

The replacements I bought 4-5 years ago when my original failed have four tabs.

[Jack J.]

Re: C2-crossmember cushions/bushings

A follow up to my Sept.15th posting on their removal: First,thanks to both Wayne Womble and Joe Lucia who pointed me in the right direction and I chose to do it myself. Rather than incur the wrath of my local EPA (neighbors),by burning the rubber out, I clamped the crossmember in a vise and used a box cutter(razor blade) to cut away the rubber from both sides, removed the center and easily hand chiseled the outer shell from the crossmembers inner pocket. Both pocket ID's still contain remnants of metal, rust-welded to their insides which will have to be removed without damaging the crossmember. I now need to purchase the correct 4 tab replacements. Any suggestions? As a footnote, I know a 2" DEEP-3" holesaw would be the perfect tool for this project.