It had a shot rear diff. I pulled said diff and it has no final drive ratio sticker, long since fallen off.
I turned the prop input 20 times and got 6.5 turns of axle output shaft.
I then counted the turns on my replacement diff which I bought at a wreckers which is a 3.7 and got 5.75 turns of the axle output shaft.
Here's the issue.
The wrecker insists that vitually every soobie of the vintage mine is are all 3.7's. Only some direct import Brat/Brumby utes from Japan, (2nd hand, not thruough a soobie dealer), had 3.9's.
How do I tell what I should have in the car ? How can I tell what the front diff ratio is ? My suspisicion is that the previous owner has fitted the wrong rear diff to the car. What's likely to be damaged if this is the case ?
It looks as though the diff has been in there for quite some time. It looks original. Suffice to say I'm at a loss as to what I should be doing here..
