Go to http://www.allisontransmission.com and look up info on the series 1000 transmissions. You can find a lot of info there. There are only 3 types of fluid that is usable in these transmissions Dextron III, TranSynd from Allison by Castrol and a mix of the two when you are switching from one to the other. Find a local Allison shop to buy fluid and filters from, the parts will be significantly cheaper than from a GM Dealer. You can also look into a deep pan and pick-up tube in you want to increase the fluid capacity.

[ 03-11-2002: Message edited by: IndigoDually ]</p>