9" diff

I reckon you would find any advantage in strength would be negated by the weight. 9" diffs are bloody heavy!

What are you doing that is breaking your diffs and axles?

my current crownwheel has 35 teeth and the pinion has 9, I dont know alot about diffs......... the tag had pno ar2925e-4005-e
with a 3.89 ratio and serial no 4192, does this all seem right??

Get a falcon diff mate, plenty strong enough without the weight of a 9". Also have you concidered how much power a 9" will rob from your car just trying to turn the diff? Old hilux diff is a tried and proven diff (also about the easiest diff conversion known to man) but they are starting to get real thin on the ground.

Best option is to part company with the Escort and buy a real man's car - a Falcon with the 9" and top loader and a Cleveland. But then maybe keep the Escort to take ma shopping, or if it is raining and you don't want to get the Falcon wet.

Its a mk2 cortina running a worked 2lt, any-one know if ill need to change the whole axle or will a hilux/falcon centre be right in there??

its at the burnout comp
Also does any-1 know if the Escorts n cortys had the same rear axles, mines a 1970 mk2

Back in the day I got the LSD centre fron a falcon and got a TE Cortina housing cut down to fit my mk2 escort. Worked great cos I only cut one side and made the short side the new long side and cut the long axle way back. Had enough meat on it to spline it. Stud pattern was the same as Escort and the drum brakes were marginally larger. Was a little bit of mucking about but that thing absorbed alot of punishment from myself and the owner after me.

Was a few years ago but from memory it was pretty damn straight forward and it bolted right in after the housing was shortened and had the brackets put on. I think I stayed with the cortina ratio too which was 3.77 or 3.89 iirc.