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  • 1 year later...
  • 3 weeks later...
Posted

First I had just rebuilt my 218 and set it in the car hooked up to the trans and got it started, after a while I started seeing oil on the floor, hum thinking the new rear main was leaking, bummer right so I let that go for now but mind you the trans has been out for a few years and I can't get it to shift into low or reverse , so I pulled it out and the gear was stuck with light rust on the slide so I worked to get it freed and then before I reinstalled it I was reading about there needing to be a gasket between the bell and the Trans, so no more leak any longer and all is good in Mopar Land.

 

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  • 4 months later...
Posted

Think we already have one uploaded. 

 

If you could download it and see if it is same as yours. 

  • 3 months later...
Posted

After a engine change I had a noise from my old transmission which wasn't there before. The only difference  was to put this seal (approx. .03) in between. Today I added additional shims and the noise gone.  So my thinking was maybe this gasket is really thick(.08 or more).

There must be a a difference between the bell housing lengths from a '49s to a '50s engine. Both are fluid drives and I used the bell housing came with the '49s.

Posted

The one on my car is about 2x time thicker than cereal box card board.  The one I got to do my OD swap is like grocery bag thickness.  I reused the thicker one.  Unless your rear main seal has all but given up, chances are a leak at that point is transmission lube not motor oil. Or it could be both.  Check your trans for level as well as your dipstick.

  • 5 years later...
Posted
On 6/18/2018 at 2:59 PM, Don Coatney said:

Next trip to the grocery ask for paper not plastic. The paper bag works great to make this gasket.

Can I really use a brown paper bag for making this gasket? When I removed my transmission there was no gasket. 

Online wants $50 for a trans gasket set. Have not found this gasket by its self. 

Posted
On 5/2/2024 at 1:27 PM, rcl700 said:

Can I really use a brown paper bag for making this gasket? When I removed my transmission there was no gasket. 

Online wants $50 for a trans gasket set. Have not found this gasket by its self. 

If Don said so, then run with it...thicker paper bags that could be used to cover school books were basically made with kraft paper, which is the same material used to make thinner paper gaskets.

Posted (edited)
On 6/18/2018 at 2:40 PM, P15-D24 said:

Really thin, not much more than a sheet of paper. 

 

On 6/18/2018 at 3:14 PM, etzmolch said:

After a engine change I had a noise from my old transmission which wasn't there before. The only difference  was to put this seal (approx. .03) in between. Today I added additional shims and the noise gone.  So my thinking was maybe this gasket is really thick(.08 or more).

There must be a a difference between the bell housing lengths from a '49s to a '50s engine. Both are fluid drives and I used the bell housing came with the '49s.

 

On 6/18/2018 at 3:52 PM, greg g said:

The one on my car is about 2x time thicker than cereal box card board.  The one I got to do my OD swap is like grocery bag thickness.  I reused the thicker one.  ....

 

I see that the question I was thinking of asking was already answered, years ago.

 

Since it’s so thin, what is its purpose?  

 

I installed my transmission more than 40 years ago, and do not recall if I had that gasket. So wondering if I should pull it back out, and make sure, or make one.

 

Was the thickness possibly determined by some sort of run-out measurement?  (I know, I should look in the manual...)
 

Edited by Eneto-55
Posted
5 hours ago, Eneto-55 said:

...Since it’s so thin, what is its purpose?  

I reckon it has to do with elimination of metal-to-metal contact to minimize vibration in the driveline, which could have an abrasive effect on the mating surfaces...over time, this might result in the bolts holding things together having reduced clamping force...that could be problematic.

 

The other side of the coin is the thin paper gaskets isolate the vibrator in the engine compartment horn so it will actually work properly.

 

I believe more modern powertrains eliminated the paper gaskets as material technology and manufacturing methods have improved over the decades.

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