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Re: 55-56 Dodge Plymouth Rear Axle width [Re: John_Kunkel] #3023116
03/12/22 05:08 AM
03/12/22 05:08 AM
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A Red State
SNK-EYZ Online tonguue
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Originally Posted by John_Kunkel
In '55-'56 the Chrysler and DeSoto are different animals.


Yes in some respects, but use many of the same sheet metal and other parts.
Looking at rockauto most of the chassis parts they list are for either brand car.

[Linked Image]

[Linked Image]


Kayse can't keep up at all now. lol
Re: 55-56 Dodge Plymouth Rear Axle width [Re: SNK-EYZ] #3028036
03/27/22 12:14 PM
03/27/22 12:14 PM
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Posts: 1,506
AZ
Mike P Offline OP
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I would have normally started another thread but this one got off track enough that I figured I’d just post my next question here too.

I had just assumed that the 55-56 Dodges and Plymouths used a rear sump oil pan like the 55-56 Chryslers and they didn’t start using the center sump pan until 1957 when they started using the torsion bar suspension.

I recently came across a picture showing what was purported to be to be a 56 Dodge oil pan and it was center sump.

For the guys who have a 55-56 Dodge or Plymouth is the stock pan center or rear sump or if you did an engine swap is there enough room to use either style pan?

The 1st gen Chrysler HEMIs only used the center sump pans in 57-8, they’re out there but if I need one I suspect I should start looking around now.

.


1957 Plymouth (Hemi, Dual Quads, A833 4 Speed 9 1/4 w 4.10) Sold
1937 Dodge Pickup (Hemi, 6X2 intake, 46RH, Dana 60 w 4.56) Sold
1968 Plymouth Valiant 2dr sedan (354 HEMI, 46RH w/4.30 gears)
Re: 55-56 Dodge Plymouth Rear Axle width [Re: Mike P] #3028083
03/27/22 03:23 PM
03/27/22 03:23 PM
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Rio Linda, CA
John_Kunkel Offline
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'56 Plymouth FSM shows a front sump or center sump.

Side.PNGPan.PNG

The INTERNET, the MISinformation superhighway
Re: 55-56 Dodge Plymouth Rear Axle width [Re: John_Kunkel] #3028141
03/27/22 07:41 PM
03/27/22 07:41 PM
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Freeport IL USA
poorboy Offline
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I have a 54 Dodge truck factory service manual, it shows both a 241 Hemi and a 331 Hemi, and the illustrated pictures of each show a front sump pan on both motors. The flathead 6 is also a front sump pan. Maybe another option?

Re: 55-56 Dodge Plymouth Rear Axle width [Re: John_Kunkel] #3028165
03/27/22 09:01 PM
03/27/22 09:01 PM
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Originally Posted by John_Kunkel
'56 Plymouth FSM shows a front sump or center sump.


Looks like front sump is V8 and center sump is flathead 6, according to my /56 Plymouth manual

pan.JPG
Re: 55-56 Dodge Plymouth Rear Axle width [Re: Sniper] #3028355
03/28/22 01:05 PM
03/28/22 01:05 PM
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AZ
Mike P Offline OP
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Thanks everybody. Looks like I'll be putting a 392 oil pan on the list of things to look for.

.


1957 Plymouth (Hemi, Dual Quads, A833 4 Speed 9 1/4 w 4.10) Sold
1937 Dodge Pickup (Hemi, 6X2 intake, 46RH, Dana 60 w 4.56) Sold
1968 Plymouth Valiant 2dr sedan (354 HEMI, 46RH w/4.30 gears)
Re: 55-56 Dodge Plymouth Rear Axle width [Re: Mike P] #3028442
03/28/22 06:26 PM
03/28/22 06:26 PM
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the 241 i have on the shelf looks to be a front sump as has been shown.
that engine and a bunch of chromed parts i have stashed in the upstairs "junk room" is promised to member CrowBait.
hopefully, i live long enough to see him do something with that engine.
beer

Re: 55-56 Dodge Plymouth Rear Axle width [Re: Mike P] #3028562
03/29/22 06:19 AM
03/29/22 06:19 AM
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Holland MI Ottawa
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Interesting video on swapping in the common Explorer rear end.
https://www.youtube.com/watch?v=uMk7EOO3k24


Keep old mopars alive.
Re: 55-56 Dodge Plymouth Rear Axle width [Re: 2boltmain] #3028586
03/29/22 08:38 AM
03/29/22 08:38 AM
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Sniper Offline
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I saw that video on another site. A few issues with some of his claims about the original axle, but over all a decent show. IMO, for the stock flathead, the only real issue I have with the original axle is the non-self energizing drums on it. Gear ratios might be a bit high, but an OD trans is probably a better option than a gear ratio change. Of course, it's cheaper to swap in an Explorer axle than to source an original OD trans, lol. Though there is an adapter that allows you to slip an A833 (or an A833OD) in there. But that's another can of worms dealing with no parking brake.

Re: 55-56 Dodge Plymouth Rear Axle width [Re: Sniper] #3028600
03/29/22 09:37 AM
03/29/22 09:37 AM
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Holland MI Ottawa
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Originally Posted by Sniper
I saw that video on another site. A few issues with some of his claims about the original axle, but over all a decent show. IMO, for the stock flathead, the only real issue I have with the original axle is the non-self energizing drums on it. Gear ratios might be a bit high, but an OD trans is probably a better option than a gear ratio change. Of course, it's cheaper to swap in an Explorer axle than to source an original OD trans, lol. Though there is an adapter that allows you to slip an A833 (or an A833OD) in there. But that's another can of worms dealing with no parking brake.


Yes he is not well versed in what's available for the vintage cars but it would be nice to have the parts availability (salvage yard and parts store) of a modern vehicle such as an explorer and F150.


Keep old mopars alive.
Re: 55-56 Dodge Plymouth Rear Axle width [Re: 2boltmain] #3028836
03/29/22 09:32 PM
03/29/22 09:32 PM
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Brake parts are easy to find, not inexpensive though.

New gears? Well NOS is around but ratio choices are real limited.

Limited slip? lol, no.

bearings and seal, common.

it's the little stuff that can get you, like the shims used to set bearing preload, you will be rolling your own there.

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