help me understand

[bertfam]

I bet you're right Bryon. 1970 Camaro 4.10 posi. The traction bar comment confuses me though. Probably aftermarket?

Ed

[69Z28-RS]

IIRC, 67 Camaros with single leaf springs (usually 327/4sp cars) had a major issue with wheel hop, and when they were taken back in a 'kind of traction bar' was installed to help alleviate the wheel hop issue.

Gary, all 67's came with mono leaf springs and the radius rod (traction bar) was installed on all 12 bolts after December of 1966. However, the OP's LF7 would have come with a 10 bolt and no radius rod. More info HERE.

This was in the Fall of '66.  One of my fellow engineering drawing students bought one (or his parents did?)..  IT was the first Camaro I'd seen up close  blue with black interior (327 I remember; 4 speed I remember; wheel hop I remember; and I also remember him telling us that when he took it back in, the dealer added some type of traction bar to one side).  I don't think I ever knew if he had a saginaw or muncie and I probably didn't know the difference at that time, nor the knowledge to look at 10/12 bolt question..    I remember I was VERY envious of him driving his new Camaro while I was driving a '58 Plymouth Plaza as a freshman in college at the time... 

Is it a possibility that the wheel hop issues destroyed the original rear and a GM replacement was installed during late '69 or '70 MY??

Under warranty, the dealer wouldn't replace a 10 bolt with a 12 bolt so that's not a possibility. a prior owner is more likely but we still need to see that casting date on the pumpkin. The casting number would also give additional information so take a picture of that as well.

I agree, and I see that the C OO code is for a '70 differential.   Aren't the '70 diffs longer (or wider) than the first gens??

Ed

[bertfam]

This was in the Fall of '66.  One of my fellow engineering drawing students bought one (or his parents did?)..  IT was the first Camaro I'd seen up close  blue with black interior (327 I remember; 4 speed I remember; wheel hop I remember; and I also remember him telling us that when he took it back in, the dealer added some type of traction bar to one side).  I don't think I ever knew if he had a saginaw or muncie and I probably didn't know the difference at that time, nor the knowledge to look at 10/12 bolt question..    I remember I was VERY envious of him driving his new Camaro while I was driving a '58 Plymouth Plaza as a freshman in college at the time...

Yes, from the RADIUS ROD report:

Additionally, later in the year, a rectangular rod service retrofit kit was made available to dealers to address wheel-hop complaints. The service kit could be applied either early vehicles with no rod at all or to vehicles with the round rod.

Ed

[ZLP955]

A "rear-facing" traction bar sounds aftermarket, or even home-made. Must be close to the fuel tank.

[707dog]

Rearend date code D140

Once i resize the pics ill post the one with the wierd trac bar

[bertfam]

Rearend date code D140

Yep. April 14th, 1970. And I'd also be willing to bet the casting number is 3969341.

Ed

[707dog]

Sounds like the camaro has some changes in its short time on the road...it spins nice no slack once im done with the subframe ill tackle that rearend area.

Well since the rearend is not the stocker ill sell off the 4 piston brake system and go with the cpp 4 wheel disc

[707dog]

here is that goofy rear bar

[cook_dw]

Is it just one bar or one on each side?

[67jeffreyt]

Looks like it was installed incorrectly

[KurtS]

That's just the standard, optional disc brakes.
Nothing wrong with the disc brake system in 67 - it will work fine. But I'd have the calipers sleeved with stainless steel...

[707dog]

Is it just one bar or one on each side?

it's on both sides mounted the same way, they will be coming off when i install the new rear suspension

[707dog]

That's just the standard, optional disc brakes.
Nothing wrong with the disc brake system in 67 - it will work fine. But I'd have the calipers sleeved with stainless steel...

ill end up media blasting all the parts/hardware and then put them up for sale. surprisingly the hubs spin pretty nice !

[cook_dw]

If you are gonna throw them away Ill take them..  Ill pm you.

[707dog]

If you are gonna throw them away Ill take them..  Ill pm you.

i won't toss them they will end up on CL so i can put a couple dollars back into the car