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Transmission mount recommendation #3052049
06/20/22 05:15 PM
06/20/22 05:15 PM
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Newark DE
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Dogpro Offline OP
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70 Cuda 383 4spd. My original trans mount is wasted and looking for a replacement I'm not sure if I want rubber or poly but I don't know what is best for a cruise night driver. Any recommendations? Thanks, Lou


Lou P.
Newark DE
Re: Transmission mount recommendation [Re: Dogpro] #3052052
06/20/22 05:19 PM
06/20/22 05:19 PM
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Sniper Online content
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Originally Posted by Dogpro
70 Cuda 383 4spd. My original trans mount is wasted and looking for a replacement I'm not sure if I want rubber or poly but I don't know what is best for a cruise night driver. Any recommendations? Thanks, Lou


Either one is fine for a cruise night driver. Rubber will transmits slightly less vibration and noise to the body than poly, but most parts store rubber mounts these days are junk. Poly is generally better built and lasts.

I recently bought a set of parts store mounts for my 51, hoping they will last long enough for my originals to get back from being revulcanized. That's the route I would go.

Re: Transmission mount recommendation [Re: Sniper] #3052062
06/20/22 05:47 PM
06/20/22 05:47 PM
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MoreParts Offline
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My cruise night Challenger 383 recently got the poly upgrade tranny mount. I also did most of the front suspension with polygraphite as well. I absolutely love it. Together it has more of a modern call ride quality over the land barge feel it had prior.

Re: Transmission mount recommendation [Re: MoreParts] #3052076
06/20/22 07:39 PM
06/20/22 07:39 PM
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mopars4ever Offline
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I prefer rubber but finding good rubber can be tuff.

Re: Transmission mount recommendation [Re: mopars4ever] #3052077
06/20/22 08:01 PM
06/20/22 08:01 PM
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Chicago, IL
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PLUM_72 Offline
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Chicago, IL
Id keep the trans mount the same material as the engine mounts. Everything should move as one.


1972 Dodge Challenger
Re: Transmission mount recommendation [Re: Dogpro] #3052090
06/20/22 09:53 PM
06/20/22 09:53 PM
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Omaha Ne
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TJP Offline
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Poly unless you want to replace it again in 6-24 months twocents beer

Re: Transmission mount recommendation [Re: Dogpro] #3052105
06/20/22 11:21 PM
06/20/22 11:21 PM
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Moved to N.E. Tennessee
GomangoCuda Offline
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I put poly in mine 20 years ago. The replacement rubber ones they sell now will turn to dust well before that time frame. I can remember a made in India rubber motor mount that didn't last a week.


In theory, there is no difference between theory and practice. In practice, there is.
Re: Transmission mount recommendation [Re: GomangoCuda] #3052180
06/21/22 01:37 PM
06/21/22 01:37 PM
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north of coder
moparx Offline
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lots of the rubber mounts sold today don't have a "made in" identifier on them.
the box usually says "a product of ????", but who really knows where the item is made these days ? shruggy
maybe that means the box is "a product of ????". biggrin
beer

Re: Transmission mount recommendation [Re: moparx] #3052217
06/21/22 03:51 PM
06/21/22 03:51 PM
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MoreParts Offline
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Originally Posted by moparx
lots of the rubber mounts sold today don't have a "made in" identifier on them.
the box usually says "a product of ????", but who really knows where the item is made these days ? shruggy
maybe that means the box is "a product of ????". biggrin
beer


Instead of "a product of" they should say "a piece of." The rubber on new mounts hasn't been quality in a long time. They're about as durable as a damp sponge.

Re: Transmission mount recommendation [Re: moparx] #3052221
06/21/22 04:42 PM
06/21/22 04:42 PM
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Originally Posted by moparx
lots of the rubber mounts sold today don't have a "made in" identifier on them.


You made me go check my new mounts for the 51. Box says "Made in IN" The mounts themselves have INDIA cast into the rubber.

Marmon Ride Control is the brand on the box, FWIW.

Re: Transmission mount recommendation [Re: Sniper] #3052223
06/21/22 04:58 PM
06/21/22 04:58 PM
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Niles , Ohio
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therocks Offline
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poly all the way Mine is and Imperial services.Been in for 20 years behind 440 4 speed 65 My kid ran it in the 62 300 also.We also run his motor mounts I used to rip one out every year Now never


Chrysler Firepower
Re: Transmission mount recommendation [Re: therocks] #3052247
06/21/22 08:20 PM
06/21/22 08:20 PM
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Newark DE
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Dogpro Offline OP
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Thanks for the replies guys! It looks like I should be leaning towards a poly mount so I'll start checking them out. Lou


Lou P.
Newark DE
Re: Transmission mount recommendation [Re: Dogpro] #3052609
06/23/22 08:14 AM
06/23/22 08:14 AM
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Marion, South Carolina [><]
an8sec70cuda Offline
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Poly.


CHIP
'70 hemicuda...8 sec street car
'69 road runner 440 w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'73 Chrysler New Yorker
'06 GMC 2500HD LBZ Duramax...toy hauler
'90 Chevy SS454 Silverado
Re: Transmission mount recommendation [Re: an8sec70cuda] #3052806
06/23/22 08:17 PM
06/23/22 08:17 PM
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Harriman NY
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71GTX471 Offline
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Look for a NOS aftermarket {DOAN} or equivalent 2525 insert or complete mount 2515 from about 30 years ago pre UPC symbol.

As a matter of fact I just bought Ebay item# 134143744495 looking just now.




Last edited by 71GTX471; 06/23/22 08:27 PM.
Re: Transmission mount recommendation [Re: 71GTX471] #3056384
07/05/22 04:19 PM
07/05/22 04:19 PM
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Harriman NY
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71GTX471 Offline
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Received the NOS Doan trans mount,quality made back in the day USA part.

trans mount.jpgtrans 1.jpgtrans 2.jpg
Re: Transmission mount recommendation [Re: 71GTX471] #3056627
07/06/22 12:11 PM
07/06/22 12:11 PM
Joined: Sep 2003
Posts: 16,209
north of coder
moparx Offline
"Butt Crack Bob"
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beer

Re: Transmission mount recommendation [Re: moparx] #3056699
07/06/22 01:45 PM
07/06/22 01:45 PM
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Central Florida
larrymopar360 Offline
I'm tired...Very tired.
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Central Florida
As long as you don't have any harmonic vibration issues (even very minor) poly is best, but if you don't have an extremely well balanced engine, etc. you'll feel the added vibration.


Facts are stubborn things.
Re: Transmission mount recommendation [Re: 71GTX471] #3056765
07/06/22 03:23 PM
07/06/22 03:23 PM
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Rio Linda, CA
John_Kunkel Offline
Much ado about nothing
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Rio Linda, CA
On the original spool mount, a lot of folks fill the voids around the bolt sleeve with black RTV.


Doing my best to irritate the herd.
Re: Transmission mount recommendation [Re: John_Kunkel] #3057065
07/07/22 10:41 AM
07/07/22 10:41 AM
Joined: Sep 2003
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north of coder
moparx Offline
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windshield urethane works good for filling those voids as well.
beer







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