Looking for info on this trans. Dynamic - Page 2

jmantle · 12-11-2023, 09:25 PM

AMC 904 postal van transmission. I believe they were all 904's, not the 998/999 V8 version which had a larger front servo and 4 pinion planetaries. Easy to tell a V8 unit from the outside, they have 2 ribs on top of the rear servo.

chopperloco · 12-12-2023, 03:13 PM

Is anyone familiar with the Dynamic that built this trans.?
Are they still in business?
Thanks
Dom

65signet · 12-12-2023, 04:24 PM

https://www.dynamicconverters.com/converters.htm

pmrphil · 12-13-2023, 09:58 AM

Dynamic transmissions is in Connecticut, used to be partners with Frank Lupo's Dynamic Converter, but I don't recall what year they split up.

340Cuda · 12-13-2023, 02:43 PM

Quote:

Originally Posted by pmrphil

Dynamic transmissions is in Connecticut, used to be partners with Frank Lupo's Dynamic Converter, but I don't recall what year they split up.

Dynamic Transmissions has an active Facebook page, they have a website but it seems to be broke.

From Facebook:

104-5 Enterprise Dr # 5, North Branford, CT

(203) 315-0138

dynamicracemail@aol.com

Philip Baise · 01-03-2025, 09:00 PM

Please enlighten me. Where are the pictures of this trans?

Cstockbird · 02-21-2025, 02:53 AM

I?d just like to say a little something about dynamic trans in CT. They built my transmission in my 468 Pontiac turbo car in 2004 my car makes a ton of torque I have pounded on this thing on the street and at the track running multiple classes round Robbin as often as I could, 100 plus passes a year and it?s still
Going strong
I actually had. Gauge reading 100 degrees higher than the measured temp at converter ( never could figure out why still does it) so I had them
Pull it apart to check it. It was like new inside. The fluid was bright red the bushings had no burn marks or wear indications
Threw it all back together as it was and continued its regular beatings. Still going strong. Figure that?s, 21 years on the same
Transmission. TH400
Only reason. I even posted was because no one seemed to really know the company. I plain wore out / destroyed a lot of transmissions before finding dynamic. Haven?t destroyed one since. (Knocking on wood). Gotta give props where it?s due though. They’ve done right by me. GMonde commented in this thread he can vouch for, it I’m not easy on this trans at all

PDavidson · 02-24-2025, 02:12 PM

PM sent

astikhossw · 02-28-2025, 12:45 PM

I had those guys do there 9 roller bearings and drum modifications to my C-4 but I haven?t ran it yet but when I got the parts back from them I didn?t get the same drum back for some strange reason my 26/26 input shaft (aftermarkets)would no longer fit into the drum but a 24/26 input shaft would fit.So now they want me to send the drum and input shaft back to them (at my expense) both ways.So now when I get the drum and my 26/26 input shaft back they had replaced the drum with my correct drum with the 26 spline but for some reason now one end of the input shaft fits the drum but the other end doesn?t fit the 26 spline in the converter and the input shaft looks totally different (stock input) but I sent them a aftermarket input shaft.So having another conversation about it did nothing to fix the problem I just gave up on it as a lesson learned.

12-11-2023, 09:25 PM	#1
jmantle Member Join Date: Feb 2008 Location: Black Creek, BC Canada Posts: 331 Likes: 78 Liked 172 Times in 81 Posts	Re: Looking for info on this trans. Dynamic AMC 904 postal van transmission. I believe they were all 904's, not the 998/999 V8 version which had a larger front servo and 4 pinion planetaries. Easy to tell a V8 unit from the outside, they have 2 ribs on top of the rear servo. __________________ Jim Mantle U/V/SA 6632

12-12-2023, 03:13 PM	#2
chopperloco Member Join Date: Feb 2011 Location: Ottawa,Ont.,CANADA Posts: 161 Likes: 152 Liked 82 Times in 23 Posts	Re: Looking for info on this trans. Dynamic Is anyone familiar with the Dynamic that built this trans.? Are they still in business? Thanks Dom

12-12-2023, 04:24 PM	#3
65signet Member Join Date: May 2010 Location: El Dorado Ca. Posts: 122 Likes: 294 Liked 44 Times in 21 Posts	Re: Looking for info on this trans. Dynamic https://www.dynamicconverters.com/converters.htm __________________ Steven Barnes Stock 704 N/SA

12-13-2023, 09:58 AM	#4
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 456 Likes: 1,796 Liked 346 Times in 150 Posts	Re: Looking for info on this trans. Dynamic Dynamic transmissions is in Connecticut, used to be partners with Frank Lupo's Dynamic Converter, but I don't recall what year they split up. __________________ Phil Molski PMR Performance S/C 1623

01-03-2025, 09:00 PM	#6
Philip Baise Junior Member Join Date: May 2003 Location: Griderville Posts: 33 Likes: 3 Liked 0 Times in 0 Posts	Re: Looking for info on this trans. Dynamic Please enlighten me. Where are the pictures of this trans?

02-21-2025, 02:53 AM	#7
Cstockbird Junior Member Join Date: Jan 2012 Posts: 18 Likes: 0 Liked 2 Times in 2 Posts	Re: Looking for info on this trans. Dynamic I?d just like to say a little something about dynamic trans in CT. They built my transmission in my 468 Pontiac turbo car in 2004 my car makes a ton of torque I have pounded on this thing on the street and at the track running multiple classes round Robbin as often as I could, 100 plus passes a year and it?s still Going strong I actually had. Gauge reading 100 degrees higher than the measured temp at converter ( never could figure out why still does it) so I had them Pull it apart to check it. It was like new inside. The fluid was bright red the bushings had no burn marks or wear indications Threw it all back together as it was and continued its regular beatings. Still going strong. Figure that?s, 21 years on the same Transmission. TH400 Only reason. I even posted was because no one seemed to really know the company. I plain wore out / destroyed a lot of transmissions before finding dynamic. Haven?t destroyed one since. (Knocking on wood). Gotta give props where it?s due though. They’ve done right by me. GMonde commented in this thread he can vouch for, it I’m not easy on this trans at all Last edited by Cstockbird; 02-21-2025 at 02:55 AM.

02-24-2025, 02:12 PM	#8
PDavidson Junior Member Join Date: Nov 2022 Posts: 22 Likes: 1 Liked 22 Times in 9 Posts	Re: Looking for info on this trans. Dynamic PM sent

02-28-2025, 12:45 PM	#9
astikhossw Member Join Date: Jul 2008 Location: moreno valley Ca Posts: 266 Likes: 2 Liked 20 Times in 9 Posts	Re: Looking for info on this trans. Dynamic I had those guys do there 9 roller bearings and drum modifications to my C-4 but I haven?t ran it yet but when I got the parts back from them I didn?t get the same drum back for some strange reason my 26/26 input shaft (aftermarkets)would no longer fit into the drum but a 24/26 input shaft would fit.So now they want me to send the drum and input shaft back to them (at my expense) both ways.So now when I get the drum and my 26/26 input shaft back they had replaced the drum with my correct drum with the 26 spline but for some reason now one end of the input shaft fits the drum but the other end doesn?t fit the 26 spline in the converter and the input shaft looks totally different (stock input) but I sent them a aftermarket input shaft.So having another conversation about it did nothing to fix the problem I just gave up on it as a lesson learned. __________________ 7015 E/SA Sooner Storm