Good morning Team -

Looks like the differential in my 87 300TD is bad - terrible growling noise from the rear of the car, not effected by turning or application of breaks, sporadic severe scraping noise that went away with some speed, yadda, yadda, yadda. I've been under the car a bunch, nothing is hot, nothing looks out of place. Car has over 300K miles (estimated).

So, this weekend I'm going to have it on a lift - for another job - and will check the fluid and change if needed, just to see if that helps. If not, then I'm pretty sure I need a replacement differential - which brings me to this question;

Are all the w124 series differentials compatible? I have a line on one from a 92 300TE locally, but I haven't been able to determine if it is a straight fit.

Anyone know for sure?

As always - thank you all for the help !

__________________
1987 300TD named Klause
1987 300TD named Spouse
1987 300D named Seabiscuit
1980 300TD names Chloie (now sadly gone)