Cable lockers question

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You would have to modify the axle housing for the fork to be able to fully engage the locker. Also, you would need a long spline axle for yours - one for a semi floating I believe (can't remember if 40's are full or semi). I have asked a few axle shops about modifying a non locker axle to make it work with a cable locker - they say it's a bad idea. The splines on the axles are actually pressed in when it is made - and tempered, to try to buld up and cut the splines would remove the temper.

Long spline axles for a 7X series are between 4-500 each.

Regards,
 
Locker rear axles must be full floating and therefore its easier to take a whole 70 series and use it. Rear axles are the same width between 40/70 and relocating spring perches is an easy job by using new Dodge perches (a pair in the box) and hacking off the old ones. 40 series mounts are approx 1/2 inboard per side vs 70 series (take a quick measurement before destroying the 70 mounts and compare to 40 series.) A 60 series donor axle has the same long spline short side axle - but a 1981 or later 40 or 70 full float will have to be found.

front axles like Louis said need only:
-cut the diff mount area at 9:00 for the locker fork (easiest to use a locker gasket for template)
-use the 3-4 longer studs to mount the diff
-use a long side long spline inner axle.

rigging the cables is the hardest job.

side note: Brian at Front Range Off Road made me 30 spline inner axle shafts with the 4" diff side spline to install in my 70 series cable lockers.
 
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