63/64 3.36 p case wanted

[Jridge1]

Looking for a late 63 early 64 3.36 p case

 

[1964SuperStocker]

I just put 370 gears in my 64 3.36 p case. Why that specific case, gear and year?

 

[Jridge1]

I want to put it in my 64. The original axel shows a 3.36 posi was in it.

 

[1964SuperStocker]

Are you doing a numbers matching build? P cases are hard to come by and expensive. No one will look under the car. Do you have a build sheet for the car?

 

[Jridge1]

Its already a matching numbers car just need the rear as the missing link. It has a 57 rear in it now

 

[blkblk63ss]

One on eBay now . Dated march 9 1964 . 3789812. $329.00 Oregon.$49.00 shipping I seller is bow tie 41. If you don't find it let me know and I can post it here . P case ,no gears or posi.

 

[Jridge1]

I seen the ones on ebay Craigslist and bunch of forums but none on those dates. Also looking for a complete if possible. My axel is dated March 12 looking for p case between november 63 to February 64.

 

[blkblk63ss]

This is march 9 1964. Is that what you want??? Finding a complete might be hard to find and being any good is next question. Just go for case and put a better posi and gears in it.

 

[Jridge1]

The casting date is usually about 1 to 3 months behind assembly date. That's why I'm looking for one that specific. I'm fine with cruising on the 57 rear for now. Just thought I would put the feelers out

 

[Jridge1]

Found a case but no guts. What is the best replacement gears and posi unit for these cases? If i were to be anal what originally went in the rear? Heard mention of series 3 series 4. What does that mean? Tia

 

[Jridge1]

Do posi units have different splines than open rears?

 

[Don Jacks]

No,they don't.Both use the same 17 spline axles.

 

[blkblk63ss]

I put a eaton posi unit and new 3:36 gears in my 63. I used original axles. I also used my original non p case case and ground it out to accept the posi unit. You can do the same with your case ,unless you really want a p case.. If I remember right I got it off e bay from us power train.

 

[La Hot Rods]

The 3 series would be foe a 3 series gear like 3.36 or 3.73.....

The 4 series would be for a 4 series gear like a 4.11 or 4.56.....
The mounting flange for the ring gear is spaced different, as the pinion gear is smaller diameter with a 4 series gear.

 

[1964SuperStocker]

I thought these old girls had 17 spline? Maybe I need to go back to school to learn to count.

 

[oldskydog]

I'm pretty sure they are 17 spline axles. I think Mopar was 19.

 

[1964SuperStocker]

Who let the Mopar guy in?

 

[Phil Reed]

Who let the Mopar guy in?

Don't worry about him!!!! Been around here for long time and is basically harmless!!!!!

 

[Don Jacks]

I changed my post to correct my screw up.

 

[Jridge1]

If it were your rear what would you do.
All new guts or rebuild a 3 series posi unit with original gears
Pros?
Cons?