Posted 2012-04-06 10:14 AM (#142852 - in reply to #142851) Subject: RE: GMC 2500 Duramax/Allison - Dealer says needs x,y,z....
Expert
Posts: 3802 Location: Rocky Mount N.C.
You can clean the battery yourself with water and baking soda... So far as the transmission, I change my spin on filter every 15000 miles, also pull the trans drain plug and about 7 quarts of fluid will drain. Refill with fluid and replace spin on filter. Spin on filter is $28.00 at GM dealership, about $11.00 online. Filter screen in the pan is replaced when the transmission is rebuilt. GM does NOT recommend flushing the trans, just replace what you drain from the pan when replacing the spin on filter. My truck is a 2001 3500 with 110000 miles with probably 100000 of that towing better than 10,000#.
Source for spin on Allison 1000 series trans filters... They are about the same price at an Allison dealer/repair shop. This is the Fleetguard number, they will run about $15.00... Fleetguard HF35296
Posted 2012-04-06 9:37 PM (#142863 - in reply to #142851) Subject: RE: GMC 2500 Duramax/Allison - Dealer says needs x,y,z....
Expert
Posts: 3853 Location: Vermont
Originally written by ncsuacd on 2012-04-06 9:20 AM
Went to dealership for oil change.Now they are saying I need:Battery cleaning ($12, Labor $75 ???)Transmission filter change (along with fluid) ($lots).I seem to recall that the transmission filter wasnt supposed to be changed for like a LOT more miles than 50k....Truck right at 50k miles... 2008 GMC Sierra 2500 Duramax/Allison...
GMC 2500 Duramax/Allison - Dealer says needs x,y,z....
