A lot has been said about 91-92 7/9 instrument cluster failure due to bad capacitors , I've searched (but little is said about early 760 speedo's) to find info on the Yazaki 120mph out of a 1990 760 are these prone to failure same as the 91-92 7/9 140mph instrument clusters? Now for the biggie are they compatible with the 91-92 7/9 instrument cluster? I have one that is good when removed & would like to put it into a 91. 945. Thanks