NAA rear axle same as 8N?

fixerupper · Nov 13, 2019

Is a NAA rear axle the same as an 8N axle? I got a new axle for a NAA and I had to grind a little off the spline thickness to get it to go into the differential. When I ordered the axle I was led to believe the NAA and 8N shared the same rear axle. I thought I had better check with you guys before I go any farther just in case there is a difference. The base of the splines on the new axle was about .015 thicker than the factory axle that came out. Is this what I can expect from the land of almost right? I know the hand grinding I did is not nearly as accurate as it could be and it has me a little concerned.

Royse · Nov 13, 2019

Late 8N with the dual seals and the NAA axle will interchange.
That's first hand knowledge. I put an 8N axle in a Jubilee.

The earlier 8N's only had one seal and were not machined for
the inner one. Looks like most places only sell the later style now.

NAA rear axle same as 8N?

fixerupper

Well-known Member

Royse

Well-known Member

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