I am workin on putting 1990 dodge Omni auto axles in my 85 Shelby charger with the 525 trans. I can not get the Omni axles to slide in and seat all the way like the charger ones. I counted the splines between the 2 and I counted 25 on the Omni and 23 on the charger. This is on the tranny end that I counted each but the Omni ones seem to fit in the hub side with no problem at all. Can anybody please lend me some helpful knowledge. I am trying to eliminate the u-joint and extension shaft on the passenger side.

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I also wanted to say that I measured both sides that slide into the tranny on the Omni and charger axles. I only did this on the driver side one and the Omni measures about 2 3/4inches while the charger one measures 2.25 inches. am I way off base with anything?