Diff ration in my car

[cherryredbenj11]

I was just wondering if anyone would know what ratio diff is in my 1989 f 325 touring.

[maxfield]

I'd imagine a 3.91.

[daimlerman]

Should be 3:91,but could also be 3:73 or 3:64!

There should be a tag attached to one of the rear plate mounting bolts with the ratio stamped on it.

With a manual 'box,a 3.64 will give 73mph at 3000rpm.

[Andyboy]

Manual uk Tourings were 3.91. I fitted a 3.7 to mine and it was a big improvement. No real loss of performance but much nicer on the motorway and better on fuel.

[Brianmoooore]

Manual uk Tourings were 3.91. I fitted a 3.7 to mine and it was a big improvement.

Exactly what I did to the red one in my sig., and found the same results.

[cherryredbenj11]

thankyou