63-67 versus 68 and up rear strut/camber bracket.....clarity please

[Michael G.]

Good morning all. The 63-67 and 68 and up used as we know a strut/camber bracket bolted to bottom the differential. I'm looking to confirm what I think I know......that the midyear bracket had a deeper 'V' to it than the '68 and up having a lesser 'V'. Would this be correct?

[Joe L.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Good morning all. The 63-67 and 68 and up used as we know a strut/camber bracket bolted to bottom the differential. I'm looking to confirm what I think I know......that the midyear bracket had a deeper 'V' to it than the '68 and up having a lesser 'V'. Would this be correct?

Michael------


Yes, that's correct. Also, these brackets do not have part numbers stamped on them.

[Michael G.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Michael------


Yes, that's correct. Also, these brackets do not have part numbers stamped on them.

Correct Joe which is why I wanted to confirm what I thought 'I knew'. There is a distinguishable difference between the two brackets when laid side by side.

Now riddle me this........what would be the alignment repercussions if one were to reverse the brackets attaching on the wrong car. Meaning.....a midyear bracket on a C3 and shark body bracket on a C2?

[Patrick B.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Correct Joe which is why I wanted to confirm what I thought 'I knew'. There is a distinguishable difference between the two brackets when laid side by side.

Now riddle me this........what would be the alignment repercussions if one were to reverse the brackets attaching on the wrong car. Meaning.....a midyear bracket on a C3 and shark body bracket on a C2?

The C3 bracket creates a lower rear roll center. The main effect is that there is less camber change during up and down suspension deflection. This is certainly an advantage for wider tire tread width (F70-15 vs 7.75-15). I don't think it has any real effect on the static alignment setting. If anything, most people use modern radials on C2's and the C3 bracket and alignment specs are probably closer to optimum than the stock C2 setup for 7.75-15 tires.

[Duke W.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Lowering the rear roll center also increases understeer bias with the same spring and bar setup. I think a lot of vintage C2 racers use the C3 strut rod bracket. The C2 2.5" under-the-car exhaust will not clear the C3 bracket, but vintage racers use side racing exhaust systems.

If you were to change one from another the rear camber will definitely need to be checked and reset to achieve the same value before the swap.

Duke

[Jerry G.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Anyone have a photo of the two side by side?

[Ray K.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Michael,

I installed the '68 style strut bracket on my '65 sometime in 1969 and had it on there for many years. Still have the bracket.

Ray

[Joe L.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Anyone have a photo of the two side by side?

Jerry------


Here are the 63-67 bracket and the 75-79 bracket. The 75-79 bracket is identical to the 68-74 except for the small tab with hole (for attachment point of catalytic converter heat shield).


DSCN2677.jpgDSCN2678.jpgDSCN2679.jpg

[Timothy B.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Joe,

Are you referring to the spot welded tab shown in the top right side of pic #2. I have one like that and on the spring side there is AAD 2765 stamped into the metal.

[Joe L.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Joe,

Are you referring to the spot welded tab shown in the top right side of pic #2. I have one like that and on the spring side there is AAD 2765 stamped into the metal.

Timothy------


Yes, however the tab is not spot-welded. It's actually part of the single sheet of steel that the body of the bracket was stamped from.

[Timothy B.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Joe,

Thanks for the reply to my question. I will look at that tab again, I thought it was a piece of metal added that looked like a spot weld to install.

[Joe L.]

Re: 63-67 versus 68 and up rear strut/camber bracket.....clarity please

Joe,

Thanks for the reply to my question. I will look at that tab again, I thought it was a piece of metal added that looked like a spot weld to install.

Timothy------

I'm curious, too. It is possible that early-on the tab was simply spot-welded to the 68-74 bracket. If so, I would expect that this would have only occurred for all or part of the 1975 model year.