posi traction question???????

[kwilliams_1978]

I recently bought a posi unit from a guy off craigslist, he bought it brand new for an 84 cutty ,I have a 78 regal. I am wondering if their is a website i can check the casting numbers on the posi unit? it has a 606-2 on the unit just wondering? Because i was going to put it in but now have a 86 monte ss rearend and 4.11 gear so dont need anymore and am selling and got a guy asking for numbers.

 

[SLICK79WGN]

best way would be to post up a pic since there are so many different ones