hi chaps does anyone know the correct size / thread for the bolts that hold the prop to diff face on a sierra diff as i need 4 eny light on this would be cool thanks paul

I think there M10 but with a 1 mm pitch will check and get back to you!

They are indeed M10x1.0mm. I think mine are 16mm long.

HTH

They are M10x1x18mm.
In case you want them from Ford...
part number:- PF6118344 182582 screw @ 76p each plus VAT.

thanks lads for all the help nice 1 cheers paul

Arnt they also 12.9 bolts instead of 8.8s too? Just to make sure you get the correct strength.