Dodge Diesel - Diesel Truck Resource Forums - How to find what spline axles i have

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JARHEAD

Nov 30, 2025 02:26 PM

How to find what spline axles i have

The front Dana 60 was easy but having trouble finding out what splines my rear Dana 70 4:10 rear has. Going to do a gear swap.

If in tech articles i have missed it.

On a 2000 2500 4x4

SIXSLUG

Nov 30, 2025 04:12 PM

IIRC the rule is bolts retaining the shaft ends 32, studs with washers and lock nuts 35 as they use a cone and washer design......

That's a big IIRC:ugly:

Kurt

u2slow

Dec 1, 2025 11:45 AM

32 spline took over in the dodge D70's from about '91.

JARHEAD

Dec 1, 2025 05:22 PM

Thank yall.

oliver foster

Dec 1, 2025 07:14 PM

About what I have found as well. My ‘91.0 has the stud set up and I have checked it is a 35 spline axle. The ‘90 Dana 70 i used under my Ramcharger swap is a 35 spline as well. It also has studs.
‘92 and up seem to all have the bolts style.

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