Hi Guys,

Don't think I am a retard for asking stupid questions.

My cousin gave me a heap of spares for my escort and included were these.



I know next to nothing about diffs and was wondering are these what is used to determine what the ratio will be.

There are 35 splines on the big ones and 9 on the small ones if that helps.

My diff is rooted (makes horrible noises and it's not the bearings) so I was going to use these when I get it rebuilt and just wanted to know what ratio it may be.

Many thanks

Matt

Crown wheel and pinion. yes they are the gears.

Don't think there is any such thing as a stupid question if you are wanting to learn. Divide the crown wheel teeth by the pinion teeth to get the ratio, in this case 35 / 9 = 3.89 or thereabouts. Should give good acceleration and not too high revving at top speed.

Craig.

3.9 to 1

Thanks Guys,

That rocks. I was hoping to get those ratios down the track.

What approx would a diff rebuild cost?

Cheers,

Matt