Hard Shift

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Scout62

Member
Took the 1975 Scout II out on new years day and did some wheelin in the snow. It did great. When I went to pull it out of 4x4 high back into 2x it popped pretty loud. Hubs were disengaged and I was in reverse.

It drove fine for bout 20 miles then I went to shift into 4th and it wouldnt go. I ended up having to stop and start in 2nd and it then went through all the gears. I drove it the next day and it did the same thing with the same fix.

I checked the tranny and t case fluid all looked good and I also put it back in 4 high and everything works fine. The only thing that looks slightly wrong fluid in the master cylinder looks low in the resevoir closest too the the firewall, its bout 3/8 full.

.... what would cause it to lock me out when shifting ?

quick specs ... 1975 Scout II 392 w/ t 19 4spd . Dana 44 axles w/ manual hubs according to guy I bought it from 12" clutch not sure how old.
 
Welcome to the forum. This doesn't really answer your question, but for future reference, you're better off having your hubs locked in for your engagement/disengagement of 4x4. Once the axle is disengaged, then turn your hubs out. Hi range shifting is best achieved with the vehicle in forward motion. You want to be under mild accel when going from 2 to 4hi and mild decel when going from 4 to 2hi. Shifting into low range is best done with the vehicle stopped and your tranny in neutral.
 
scout62 said:
took the 1975 Scout II out on new years day and did some wheelin in the snow. It did great. When I went to pull it out of 4x4 high back into 2x it popped pretty loud. Hubs were disengaged and I was in reverse.
Click to expand...

If your hubs were unlocked and you had the clutch pedal on the floor the only thing that could load the drive train is a dragging clutch. Make sure the pressure plate in indeed unclamping reliably.

Robert
 
Did you actually unlock the hubs, or did you just turn the dial to free. The common IH/warn hubs use on the sii are "spring locks" the dial is connected to the clutch by springs. Turning the dial loads the springs and once things are aligned they will lock in, or once the driveline bind is released they will unlock.

If you turn the hubs first you basically need to do a burn out to relive the bind in the t-case, for the hubs to actually unlock. Or do as scoutboy recommended and shift to 2wd on the fly. Put medium pressure on the lever give it a wot blast and release the throttle, on the decel it should slide right out. Either way you must release the driveline bind for it to shift out of 4wd smoothly. With the recent record snow fall in the pnw I've gotten lots of practice logging 500mi+ with the hubs locked in and shifting in and out of 4wd on the fly way to many times to count.
 
Seems like I have a lot to learn about manual locking hubs! I just got back up to pville where I have the Scout parked so ill go take it for a drive. All my 4wd has been with vehicles with auto hubs (which I hate!).
 
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