Sorry for posting this on here but I couldn't get the truck forum to work. We just got done with cutting silage, had nearly 30 acres to cut before the rain from Irma got here. I had some trouble with my 74 IH 1600 dump truck, it has the 5+2 transmission in it, the gears are 1,2 & 4 on top and R,3 & 5 on the bottom. Twice while shifting from 2nd into 1st gear the tranny locked up, both times I was still in 2nd but the shifter would not move, it seemed like when I went to go down with the gear shift it went down at an angle. Both times it locked up while I was loaded and pulling, I took the 4 bolts out of the shifter cover, lifted it up, moved the right shift bar (rail) up slightly, put the cover and bolts back on and away I went. I would like to know what is making it do this, the rest of the day I would stop, make sure I was in neutral, then went over and up into first gear. I have replaced the first & reverse lever block and the ball and springs that go under the cover. Its not hard to get it unlocked but just aggravating and a little warm sometimes LOL Anyone know of what I might could check??
- Thread starter nh8260
- Start date
Well we had ih trucks all my growing up life. What my dad would always say was YOU CUT THE CORNER.... The way he explained it need to make the shift in a Half square fashion NOT a U pattern or pull back, move over ,,push up not trying to make it in a u shift. Hope this helps but it has be 40 years, only thing wors was we had one 1700 Loadstar CABOVER.. it shifted with linkage up on the steering column , when it got wore out it was a nightmare.
MARK ROBKE
Well-known Member
The shift lever housing may be wore out-allowing the the lever to ride up higher than it is supposed to be,which allows the shift finger to ride over the top of the shift rails.This is especially likely if the lever housing is aluminum.You will have a hard time seeing the wear unless you have a new one to compare.I used to change a lot of them.You have to shift real careful if you don't want it to jam up.Mark
Dune Country
Well-known Member
yes shift square, also check the roll pin at the bottom of the lever, at the ball
MARK ROBKE
Well-known Member
In my post The shift lever housing is the 4 bolt housing you are removing that has the shift lever in it.Not rebuildeable.Mark
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