question on posi numbers

Nada 50

11-15-2009, 02:23 PM

I have a 9" with newer 4:11 gears and what I thought was an Auburn posi. My question is if anyone knows or knows where to find out what the Fords number is for there posi or if there is a frpp posi? I checked the part # and it might be a Ford. I know it says 4206 or 4208. I will be looking at it today to see if there are more #'s/letters. I bought it from a vendor at the drag expo years ago and I thought it was an Auburn posi/pro posi. I have been trying to google it for several hours and found nothing

Thanks

Nada 50

11-15-2009, 06:46 PM

it looks like the only other letters/#'s are

RF or RE_ DOOW or D00W
and when I rotate it, 4206 or 4208

Are these Ford part #'s?

Thanks

john-9

11-16-2009, 05:40 AM

yes they are Ford #'s not Auburn Gear -- 1970 and up traction-lok

Nada 50

11-16-2009, 09:53 AM

ok, thanks