[Matt S.]

Installed a new "ultra-case" Strange center section. Using existing strange 40 spline axles.

Axles go into the new spool about 1/2" and very tough get in further. Been hitting it with a wooden mallet. Not making it move much. Does it really need a good beating to get it in? Like a sledge?

I don't think there is a mis-match in the axle/spool as it's all strange stuff.

 

[nonracer]

Measure the major on the axle and the minor on the spool ( or vice/versa) Ill bet your just tight on the tolerance. Strange should be able to tell you what their clearance should be. I had a similar issue with some Superior street axles from an 8.2 camaro 10 bolt with a stock diff took them out and tried to put them in another rear with a stock diff and same thing just too tight.

 

[race9899]

All 40 splines use the same spline angle and diameter so you could not mismatch parts..

Does the axle have problems before the axle bearing starts to enter the housing end?

If so that would be odd, I have seen some that are tight but never had to be hammered in...

Just to make sure their no problem with the bearing, see if you can slide the long axle in on the short axle side, if it slides in tough you have a problem with the third member, if it slides in okay, you have problem with your housing!

 

[rompn63]

The spool in the Ultra case is different than the standard 40 spline spool. The Ultra case spool is wider and uses shorter axles.
You may be able to shorten your axels.

 

[Matt S.]

Thanks for the helpful responses.

The axles are on the way back to Strange for a check out in the hobbing machine. Seems that the older axles into a new spool always binds up. It would probably go togather if we clearanced it in (grind/file/glass bead). But I'm gonna leave it up to Strange to get the splines "tuned up".