Some trunnion Measurements
So I got out my 2 types of original Autodelta sliding block trunnions for Measurement.
But first let me say that the thin ended one came bolted onto my GTA Corsa and I have no reason to think it had not been there since 1966. The thick ended one came on my 64 Sprint GT Bulova racer and will have been installed sometime in the early 1970s. A same type also came on my other Bulova Car, a 69 GTV and also would have been installed in the early 1970s. These last 2 would have been sourced most likely at BOBCOR in Buffalo, 1-1/2 hours from Toronto. These observations leads me to think that the thin ended one is the early version. Alleggerita second edition, IDs that type as the late version. Also note that the thick ended version shown has been broken and weld repaired.
So you can see from the pictures how I took my measurement. Both measure about 16 mm from the straight edge to the top of the trunnion.
So if Veloce75za, the thread starter, can make comparable measurements we might learn something or not.
PS: for those interested in such things, the thin ended trunnion weighs 3.345 kg with bolt and the thick ended trunnion weighs 4.635 kg with bolt, reinforcement plate and weld fillet.
Ken Geiger, Toronto
1965 GTA, RHD, Stradale
ex- 1965 GTA, RHD, Corsa, Trans/Am 66-72
1964 Sprint GT, B-Sedan in 70's
1970 Giulia Super (CDN Spec)
1976 1600 GTj (Italian Spec)
1966 Harley Sprint (Aermacchi) 250
2000 Catalina 320, Hull #765 Northern Dream
2001 BMW Z3 3.0i
Last edited by kengta; 03-13-2019 at 01:22 PM.