ID my axle from this pumpkin…

[Dirty Murphy]

Hi, I didn’t want to drop this in the ( excellent ) “AXLE INFO” thread .
In my pick up truck( 46 dodge ) the transit engine revs out in top around 56 MPH ,
I know there’s calculators on line to help work the numbers out …..knowing what I have to work with first .
Here’s the pic

[knobby1]

Hi, I didn’t want to drop this in the ( excellent ) “AXLE INFO” thread .
In my pick up truck( 46 dodge ) the transit engine revs out in top around 56 MPH ,
I know there’s calculators on line to help work the numbers out …..knowing what I have to work with first .
Here’s the pic

"Looks" like a Dana axle, similar to the one I have in my Mk7 2008 model, the earlier Mk6 with the TDCi engine also had the Dana axles. For the ratio, can you not just do a propshaft vs wheel rotation calculation.?? Turn "both" rear wheels one rotation and count the propshaft rotations, this will give a fair idea of what ratio you have. Do you know what model Transit the axle came from..?? We may be able to tell from that, there are only a set amount of different ratios for a given model.

High rpm at 56mph (or a tad over 90kmh) would suggest a high 4.XX or even a 5.xx ratio....depending on wheel size of course.

Lord Knobrot (Smithy)

[Airthies]

Hi, I didn’t want to drop this in the ( excellent ) “AXLE INFO” thread .
In my pick up truck( 46 dodge ) the transit engine revs out in top around 56 MPH ,
I know there’s calculators on line to help work the numbers out …..knowing what I have to work with first .
Here’s the pic

"Looks" like a Dana axle, similar to the one I have in my Mk7 2008 model, the earlier Mk6 with the TDCi engine also had the Dana axles. For the ratio, can you not just do a propshaft vs wheel rotation calculation.?? Turn "both" rear wheels one rotation and count the propshaft rotations, this will give a fair idea of what ratio you have. Do you know what model Transit the axle came from..?? We may be able to tell from that, there are only a set amount of different ratios for a given model.

High rpm at 56mph (or a tad over 90kmh) would suggest a high 4.XX or even a 5.xx ratio....depending on wheel size of course.

Lord Knobrot (Smithy)

Easier jacking one wheel and doing 2 wheel rotations and count prop rotation to get reading than trying to match spinning both wheels.

It's not Mk7, possibly Mk5 but pics of wheels &stud numbers and PCD would help though being in a pickup it may have totally different axle tubes and hubs welded to a common diff case.

More pics of the diff casing would also help

Image search may bring up more info.
But the diff cover does not match any common types.
10 bolt covers are quite common, the basic housing outer shape is similar to some Dana cases but the profile does not look like any on the charts I usually referenced from.

Ps Mk7 is not a actually Dana

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[knobby1]

Ps Mk7 is not a actually Dana
Sent from my Pixel 8a using Tapatalk

Hmm...Interesting, the IPC calls it a Dana axle for the TDCi engined Mk6 machines, the only difference is that the Mk6 has drum brakes and the Mk7 has discs...

Screenshot 2026-09-09 120303.png

Lord Knobrot

[Airthies]

Ps Mk7 is not a actually Dana
Sent from my Pixel 8a using Tapatalk

Hmm...Interesting, the IPC calls it a Dana axle for the TDCi engined Mk6 machines, the only difference is that the Mk6 has drum brakes and the Mk7 has discs...

Screenshot 2026-09-09 120303.png

Lord Knobrot

Sorry let me clarify.
It's not a common Dana 60 which folk usually quote it as being in the classic sense. (Myself included for a long time).
But if you look at the D60 spec most of the measurements match but carrier offset and spline profile/pressure angle are different from a "std D60" diff, also the bolt count in the rear cover is 12 rather than 10 which makes it more like a ford 9.75" than a D60 diff. Though the 9.75 normally has 1½x34 spline half shafts rather than 1½x35.




Sent from my Pixel 8a using Tapatalk

[knobby1]

Ps Mk7 is not a actually Dana
Sent from my Pixel 8a using Tapatalk

Hmm...Interesting, the IPC calls it a Dana axle for the TDCi engined Mk6 machines, the only difference is that the Mk6 has drum brakes and the Mk7 has discs...

Screenshot 2026-09-09 120303.png

Lord Knobrot

Sorry let me clarify.
It's not a common Dana 60 which folk usually quote it as being in the classic sense. (Myself included for a long time).
But if you look at the D60 spec most of the measurements match but carrier offset and spline profile/pressure angle are different from a "std D60" diff, also the bolt count in the rear cover is 12 rather than 10 which makes it more like a ford 9.75" than a D60 diff. Though the 9.75 normally has 1½x34 spline half shafts rather than 1½x35. Sent from my Pixel 8a using Tapatalk

Understood..!

Lord Knobrot (Smithy)