front diff mount
 

yep think i broke my diff mount too put your foot on and of the gas and big thump from the rear of the car is there a stronger unit to replace the stock? are they easy too replace

Read this thread for instructions on replacing it:
https://www.rx7club.com/forum/showth...threadid=39026

Theres competition diff mounts which are stiffer than stock and a little harder to break. Maybe someone will tell you where to buy one because my brain is on sleep mode and I cant remember what the name of the place is called. :(

I just ordered mine (competition) from Mazdatrix.com

thanx for the help:)