rear end info

[P.J.]

I have a 12 bolt 3969341 NF cast date F180 as I understand it the 341 were installed after 08A 1969. Is the casting date telling me that June, first shift, 8th day of 1970????

PJ

[69L72RS]

June 18th of 1970.
The axle code will tell if it is a Nova or Camaro.

[P.J.]

Thanks Julian
there is no axil code on the rear end
PJ

[Mr70]

I've found there are other ways to determine what vehicle it came out of,due to subtle differences between the two.Try taking/relaying the measurements of these precisely.

*Length from axle tube flange to axle tube flange.
*Length of one of the axle shafts.
*Length from one spring seat centerline to the other.

[Stefano]

I put a '70s Nova Rear in my '69 COPO Camaro. Thought it lined up real nice?

[Mr70]

As well it should have.
The 12 bolt housing used in the 1968-69-70-71 Novas,and 12 bolt housing used in the 1967-68-69 Camaros had the exact same measurements between the three points I noted.
The NEW 1970 Camaro #341 12 bolt rearend housing had different measurements there,compared to them and was also the last & only year for it as well.
They began using 10 bolts in Camaros begininng with 1971 production & on.
I believe the #341 rear housing was unique to the 70 Camaro only,but I'm not 100% sure and am curious to know what P.J. can relay between those 3 points I noted..

[Kurt S]

341 was also used in late 69 Camaros and 70 Novas.

[P.J.]

Rick can you be a littel more specific
on where you need the measurements as a sketch
would be better for me. And How do I measure the lenght of the axil shaft when it is on the car??
send me an email if necessary.
PJ

[P.J.]

Rick
the measurement from backing plate to backing plate is 53 inches.
PJ

[miket1]

is the spring perch center to center 42 1/2 inches