Roy, my 970 manual shows the 870,970 as standard with a "collar shift" trans and an optional choice of a synchromesh trans. The 1070 only came with the synchro trans.
I see the current 990 listed on the JD site as having a "collar shift" trans and the 790 as having a "sliding gear" trans.
I know what a sliding gear and synchromesh transmissons are but have no clue as to what a "collar shift" trans is.
Could you fill me in on this one?
On the 870, 970 JD showed a choice difference between the "collar shift" and synchromesh transmissions so they can't be the same thing.
No big deal on the above, I just wondered what a "collar shift" trans is and why they took the "synchromesh" trans option away on the 990 which, outside of the hsp, is pretty much the same tractor as the 970 and 1070.
cheers,