Allison external control-main filter

[Chevy2DMAX]

At 7500 miles the manual says Allison Transmission Only: Replace the external control-main filter. What is that? The spin-on filter? Why isn't it called that?

At 25,000 it says to change automatic transmission fluid and spin-on filter....

[jbplock]

Originally posted by Chevy2DMAX:
At 7500 miles the manual says Allison Transmission Only: Replace the external control-main filter. What is that? The spin-on filter? Yes .. the external spin on filter is the one that gets changed at regular intervals - also be sure to remove the magnet from the old filter and transfer to the new. The Allison 1000 series user manual (available at www.allisontransmission.com) (http://www.allisontransmission.com) says to make the first external filter change at 5k vs GM's 7.5k. There is also a filter in the sump that, according to Allison, only needs changing when overhauling the transmission.

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[ 07-28-2004, 12:32 PM: Message edited by: jbplock ]