Re: 63 idler arm pics
Alan------
It's pretty much as I would expect except for one glaring "abnormality", that being the 3779196 seal ("cap"). As far as I know, that seal is used only at the pivot point between the arm and bracket sections of the idler arm assembly. I have never seen one used at the ball joint end of the idler arm. Note how abraided the surface of the seal is. That would be expected in a situation in which a rubber seal was used in an application like this. This may well be original but, if so, it's some sort of factory mistake (and, if so, a mistake made at Chevrolet-Buffalo where these assemblies were manufactured). It's hard to believe this was ever designed to have the 3779196 seal at this location. Plus, I've never before seen this on a Corvette steering linkage assembly.
One other thing: what is the finish on the slotted nut? I can't tell if it's natural or plated. The nut was supposed to be of "plain" finish (as are most of the slotted nuts used on Corvette chassis). If this is plated, then it's either a replacement or the nut used in PRODUCTION was other than the one scheduled to be used and normally used.
Alan------
It's pretty much as I would expect except for one glaring "abnormality", that being the 3779196 seal ("cap"). As far as I know, that seal is used only at the pivot point between the arm and bracket sections of the idler arm assembly. I have never seen one used at the ball joint end of the idler arm. Note how abraided the surface of the seal is. That would be expected in a situation in which a rubber seal was used in an application like this. This may well be original but, if so, it's some sort of factory mistake (and, if so, a mistake made at Chevrolet-Buffalo where these assemblies were manufactured). It's hard to believe this was ever designed to have the 3779196 seal at this location. Plus, I've never before seen this on a Corvette steering linkage assembly.
One other thing: what is the finish on the slotted nut? I can't tell if it's natural or plated. The nut was supposed to be of "plain" finish (as are most of the slotted nuts used on Corvette chassis). If this is plated, then it's either a replacement or the nut used in PRODUCTION was other than the one scheduled to be used and normally used.
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