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A999 drum in a A904? #1677567 09/27/14 09:31 AM 09/27/14 09:31 AM
Joined: Jan 2003 Posts: 6,145 Melbourne , Australia LA360 OP master
LA360 OP master Joined: Jan 2003 Posts: 6,145 Melbourne , Australia	A couple of questions, are the Aluminium drums for 904's based on the A999 5 clutch pack drum? Second, what mods are required to run one of these drums in a 904? Alan Jones

Re: A999 drum in a A904? [Re: LA360] #1677568 09/27/14 10:53 AM 09/27/14 10:53 AM
Joined: Oct 2006 Posts: 596 Mass. 8 80fbody mopar
80fbody mopar 8 Joined: Oct 2006 Posts: 596 Mass.	Do you know who's aluminum drum you're looking at? The steel jacket drum is a good option as the full aluminum one's wear fairly easy compared to a steel one.

Re: A999 drum in a A904? [Re: LA360] #1677569 09/27/14 02:55 PM 09/27/14 02:55 PM
Joined: Jan 2003 Posts: 1,812 Portsmouth, VA D DusterW2 top fuel
DusterW2 top fuel D Joined: Jan 2003 Posts: 1,812 Portsmouth, VA	The TCS AL 904 drum is nice. They also sell a steel drum. They have a 24 spring return spring module too. As far as I know it drops in. You can ask their tech line to be sure. http://www.tcsproducts.com/products/subcategory/15/

Re: A999 drum in a A904? [Re: LA360] #1677570 09/27/14 05:14 PM 09/27/14 05:14 PM
Joined: Jan 2003 Posts: 25,842 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,842 Rio Linda, CA	In order to use the factory 5-disc drum in a 904 you also need the matching front pump (or at least the back half of one) for the added clearance. The INTERNET, the MISinformation superhighway

Re: A999 drum in a A904? [Re: John_Kunkel] #1677571 09/27/14 05:46 PM 09/27/14 05:46 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts pro stock
SpareParts pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	This swap reguires a different converter hub correct?

Re: A999 drum in a A904? [Re: John_Kunkel] #1677572 09/27/14 07:53 PM 09/27/14 07:53 PM
Joined: Jan 2003 Posts: 6,145 Melbourne , Australia LA360 OP master
LA360 OP master Joined: Jan 2003 Posts: 6,145 Melbourne , Australia	Thanks John, that ultimately answered my question. I am going to make most of the components for my trans and just needed to know whether to take my dimensions from a 904 or 999 high/reverse drum. Does anyone have a picture of a A999 front pump? I am just curious to how much it is clearanced. Alan Jones

Re: A999 drum in a A904? [Re: SpareParts] #1677573 09/27/14 07:57 PM 09/27/14 07:57 PM
Joined: Jan 2003 Posts: 25,842 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,842 Rio Linda, CA	Quote: This swap reguires a different converter hub correct? Nope, the "milled flat" hub is only on the A500 '96 and later.

Re: A999 drum in a A904? [Re: John_Kunkel] #1677574 09/28/14 12:29 AM 09/28/14 12:29 AM
Joined: Jan 2003 Posts: 10,010 Frostbitefalls MN (Rocky&Bullw... gregsdart I Live Here
gregsdart I Live Here Joined: Jan 2003 Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...	Quote: In order to use the factory 5-disc drum in a 904 you also need the matching front pump (or at least the back half of one) for the added clearance. Would that be the same drum and pump in a lockup 904? Vintage 1987? 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

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