Mike & Julian, 18mm metric heim joints are available (I bought one years ago and tried to use it) The problem is that the heim’s threaded stud is also 18mm which is way larger than the 16mm thread size of the stock trunnion. The wrench size for the stock trunnion nuts is 24mm but the 18mm heim’s nuts need a 27mm wrench. That large of a nut won’t fit into the underside of the frame pedestal the trunnion mounts on. Doug -----Original Message----- From: Mike Drew Sent: Friday, June 20, 2025 5:54 PM To: Julian Kift <julian_kift@hotmail.com> Cc: Doug Braun <doug351c@gmail.com>; Detomaso <detomaso@detomasolist.com> Subject: Re: [DeTomaso] Re: Shift Linkage Trunion Bushing Julian, You’re right, it’s 18mm. Part of the PPC deal is that the piece they attach is hardened, supposedly much harder than the stock rod. That said, I can’t see why a regular 18mm heim wouldn’t work just fine with the stock rod. The rod might have to be sanded to ensure smooth operation. Mike Sent from my iPad
On Jun 20, 2025, at 16:56, Julian Kift <julian_kift@hotmail.com> wrote:
The PPC heim joint used to require one sending in the shaft for machining to an SAE heim bore size, not sure if that is still the case, which never made any sense to me as suitable metric heim (rod end) joints are readily available for less than that PI billet version!
I'd have to measure the shaft again, but it's 18 or 19mm diameter if I recall correctly.
Julian __________________________________________________________________
From: Mike Drew via DeTomaso <detomaso@detomasolist.com> Sent: Friday, June 20, 2025 4:36 PM To: Doug Braun <doug351c@gmail.com> Cc: Detomaso <detomaso@detomasolist.com> Subject: [DeTomaso] Re: Shift Linkage Trunion Bushing
On Jun 20, 2025, at 16:12, Doug Braun <doug351c@gmail.com> wrote:
I just bought a Billet Trunnion Bushing from PI Motorsports which appears on this page of their website about half way down
I mistakenly assumed that the poly bushing in it has some misalignment capability (i.e. a spherical bushing) but alas, no, it is pressed into the aluminum and rigid.
Has anyone had good or bad experiences using this item?
Doug Braun
References
1. [1]https://pim.net/tpage.html
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Doug, Hall Pantera has sold a variation of this for decades. The stock one allows for misalignment, while the bling style you have is notably less tolerant. Elevation has to be very precise to prevent binding. The heim joint version sold by Pantera Performance Center is infinitely superior, and substantially more expensive. Mike Sent from my iPad list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list DeTomaso@server.detomasolist.com [3]http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
References
1. https://pim.net/tpage.html 2. http://server.detomasolist.com/mailman/listinfo/detomaso 3. http://server.detomasolist.com/mailman/listinfo/detomaso
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