the diff is a BW from a fairlane and has disc brakes and an LSD

the part number 76DA-4006-JB
it has 2.92:1 dears
SER No: is 5825


basicly what i want to know is what type of LSD is fitted to this diff and wil the pintara 4.11 gears fit it.

also if anyone has a complete list of ratios for the BW diifs it would be most helpful

76DA seems like an x series diff, maybe xc-xd.
Hope that helps a bit

yeah it came from a fairlane that was based around the XA to XC shape.

it's going to be narrowed for use in an escort. thats why i need to know if the 4.11 gears will fit it.