12 bolt rear end

[Fbodyboy]

I was looking at a 12 bolt rear I don't if it's out of a camaro or a truck. Can someone translate this date code I 188. It measures 55 1/2 from flange to flange. The code on the passenger axle tube is CCF 1014P2 it has a car posi unit in it. I was told a truck and car have different size pinions I will try and measure that does anyone what measurement should be for that

[Z06vette]

Should be about 54.5" from flange to flange. I think the bolt pattern is 5 on 5 for the trucks. Spring perches should be about 43" from center to center. Good luck!

[Fbodyboy]

I was looking at it for a 2nd gen camaro thought those measure 55 1/2

[Z06vette]

My fault- when i hear 12 bolt i think first gen. My apologies. Nevermind the specs i gave you. Do check the lug pattern though. Scott

[Fbodyboy]

The rear end has a car posi unit in it and car bolt pattern axles I am trying to figure out when it was made. The date code is I or 1 188 I think it's an I for Sept but can't find what 188 means