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What was the Spline Count
Posted: Sat Apr 28, 2012 12:21 pm
by Deadguy
of the rear Dana 44 on my 1952 M38A1?
Posted: Sat Apr 28, 2012 3:15 pm
by circleburner12
dan if you dont find your answer, i can check tomarrow on mind when i get back to the shop.
Posted: Sat Apr 28, 2012 6:04 pm
by Deadguy
yeah, I'd appreciate it!
Posted: Sat Apr 28, 2012 9:10 pm
by wesk
Dan,
Pick a spline. Pinion, axle inboard or axle outboard.
Posted: Sat Apr 28, 2012 9:20 pm
by Deadguy
I'm thinking about putting a lockright locker in there. It's the same model the Marines used.
Posted: Sat Apr 28, 2012 9:46 pm
by wesk
The posi used on USMC M38A1's was the Trac-Loc not a Lockright. The Marine M38A1's ordered from Kaiser in the 60's came with the same Trac-Loc used in their CJ5. Those would have been tapered 10 spline axles and I believe any modern replacement you are going to find is probably for the flanged 19 spline late 44 axle.
Posted: Sat Apr 28, 2012 10:44 pm
by Deadguy
They make a Lockright 10 spline locker. Supposedly it is for the M38A1. what is the difference between that and the tracklock?
Posted: Sat Apr 28, 2012 10:50 pm
by wesk
You'll have to compare your lockright to a Kaiser supplied Trac-Loc. The info on the Trac-Loc is in any of the late 50's and up Willys/Kaiser shop manuals for the CJ's. I've never fooled with a Lockright. If it is made for a tapered axle, 10 spline Spicer/Dana 44 it will work.
Posted: Sat Apr 28, 2012 10:57 pm
by Deadguy
I'll email the supplier. I did a quick check on the TrackLoks, and the reviews are almost universally bad.
Posted: Sat Apr 28, 2012 11:15 pm
by wesk
Only bad for the folks that don't maintain them correctly.
Posted: Sat Apr 28, 2012 11:23 pm
by Deadguy
so, in your opinion, would I be better off getting one? I meticulously maintain my vehicles, and definitely don't want this for heavy four wheeling. I know it won't be completely authentic, but I want to try for as much as possible.
Posted: Sat Apr 28, 2012 11:43 pm
by wesk
Your 52 M38A1 did not come with any locker in 1952 even if delivered to the Marines. Only the mid 1960's Marine procurement contracts included the request for the Trav-Loc.
So if your intention is for an accurate and correct resto leave the standard 44 in the jeep.
If you feel you must have a locker for some reason like serious heavy off road use then by all means get a modern new locker with a warranty on it.
9 out of 10 Trac-Locs for sale have been rode hard and put away wet with very little if any care given them.