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quote:
Originally posted by JFB #05177:
Would you mind providing a little education for me?

does this support the shift rod and allows it to rotate AND slide back and forth? and the reason for the spherical ball is for alignment?


Yes, it supports the shift rod and allows it to slide back and forth a rotate. The heim joint replaces the stock rubber bushing. The heim joint will prevent the binding of the shift rod in the bushing which maintains the alignment of the shift rod.
Rick,

Rather than use a large heim joint, you can machine the stock trunion bearing to accept a spherical bearing. Since the ID of the bearing will be too large for the OD of your OE shift rod, you'll need a bushing installed in the bearing. The bushing can be machined from nylon, delrin or some other hard but slippery material.

Ron Siple made one for me years ago, exactly as described, and it's still the best shift shaft support I've seen. I think Ron is registered on the PI web site, so you can contact him via a PM.
Last edited by davidnunn
quote:
Originally posted by Husker:
Pantera Performance in Co. Dennis Quella. He requires the bar to be replaced as he changes the diameter.


quote:
Originally posted by Rick:
Yeah, Talked to him already. I just had the rod assembly cleaned up and coated so I'm trying to stick with a stock diameter heim joint if one can be found.


My GT5 was done by Dennis when I got it, I cannot understand why he takes the shaft and turns it down to fit an imperial size heim when the correct metric heims are available.


Rick, for smooth operation you will likely want to remove the coating on the portion that slides through the joint, which may mean removing it all to get the heim on there!

The alternative would be to measure the diameter with coating and get the appropriate size spherical rod end.

Midwest Control has pretty much everything you need in thsi area www.midwestcontrol.com

Julian
for what it is worth.
I took a trip to my parts trailer and quickly measure my rusty rod at ~0.71" which would possibly be an 18mm. I have worked with rod end bearings in industrial applications and was surprised that 18mm was hard to find. I was looking for economy types and only got a hit at Roush Yates
http://www.roushyatesparts.com...-end-p/fkb-cm18m.htm

now for an 18mm to work the rod diamater needs to be less tha 0.708" preferably 0.705"

I could see short sleeving the rod to go to a standard 3/4", but thinking steel and steel sliding would not be the best
quote:
Originally posted by JFB #05177:
some followup photos and your impressions would be appreciated of the part you install


Slick as snot. I shoot the rod end and the shaft with dry teflon spray lubricant at the begining of every driving season. So, it doesn't attract any dirt or grit. No issues to date.

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  • Joint_Installed

Hi all, reviving a very old post. My trunion is very worn, so I am wanting to replace it. This Karm 18 one seems like a good solution, and I just checked and it is still available from simplybearings in the U.K. I am wondering how it was worked out over the years. Did it break or wear out. And if anyone has some updated solutions to what is the best thing to replace the trunion with these days. I don't want to change my shifter rod to larger diameter etc.

Cheers Tim.

Tim, I installed the igus rod end in 2004, and it's still going strong after all these years. I didn't like the idea of using a metal rod end or metal-to-metal anything. So, the igus composite rod end fit the bill with little to no noticeable wear to date. I bought a spare rod end at the time but haven't needed to use it yet.

Enjoy, Ron

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