I've been chasing some "ghost knocks" - not much but enough to drive you crazy. Lund said it's probably exhaust to chassis contact but it turned to be something very unexpected!
I'm extremely pissed off!!!
First they've said no international shipping - please send it to someone you know in US and they can forward it to you. So I did...and they canceled my order due the different PP address/shipping address...what a bunch of assholes!!!!!!!!!!!!!!
Well, I did not bother to measure them with caliper but they really look identical. There are approx 7mm shims on both sides of the diff so I through it's doable as it seems like plenty.
At the end if the day I decided to buy 3.55 gears plus Ford installation kit, did everything myself:
Plus the best diff at the market - Wavetrac:
Alu or iron case - they are identical. 3.15 gears are also identical and the diff from 3.15 is also identical - why Ford says it will not fit...