Hi, I'm new to this forum, just found it today, have been posting on the Workhorse and National RV forum for some time.
I have been doing some studing and found these Allision sites which may be of interest, if you are not already aware:
"Participating OEM & Allison Distributor/Dealer Warranty Document Only"
http://www.allisontransmission.com/s...t=SE0612EN.pdf
The 2009 Allison Revision of the WH 1000/2000 Operator's Manual.
Page 14 States: the MH 2000, 2100, 2350, 2500 & 2550 Do Not Have A Park Pawl, however, page 18 states: All MH 1000, 2200, 2350 & 2550 with P Park Position, does have as indicated P Park = RANGE: Neutral* (With Park Pawl Engaged)
However, the new version does have added info which may be helpful to all.
http://www.allisontransmission.com/s...t=OM3364EN.pdf
And this also relates to the 1000 & 2000 MH trannys, Revision 4. August 07.
http://www.allisontransmission.com/s...t=SE0100EN.pdf
All of these documents can be easily copied as Bookmarks &/or Documents files.
If it's already been made available here, then forgetaboutit! LOL