Posted By: LA360
A999 drum in a A904? - 09/27/14 01:31 PM
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?
Posted By: 80fbody
Re: A999 drum in a A904? - 09/27/14 02:53 PM
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.
Posted By: DusterW2
Re: A999 drum in a A904? - 09/27/14 06:55 PM
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/
Posted By: John_Kunkel
Re: A999 drum in a A904? - 09/27/14 09:14 PM
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.
Posted By: SpareParts
Re: A999 drum in a A904? - 09/27/14 09:46 PM
This swap reguires a different converter hub correct?
Posted By: LA360
Re: A999 drum in a A904? - 09/27/14 11:53 PM
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.