700r trans MY 93 1500 4 WHEEL DRIVE JUST STOPPED WORKING ALL TOGETHER.IF THE MAIN SHAFT WAS BROKE IT WOULD NOT GRIND TRYING TO PUT INTO LOW OR HIGH IS THIS CORRECT WOULD IT BE THE TRANSFER CASE ,PLEASE HELP

Rear differential issue

did you turn the locks on the wheels, or check the fuses

If it won't go into gear, sounds like you've run out of transmission fluid. That grinding sound when you turn the shaft by hand, sounds like you've run it for a bit too long without fluid and wore the gears down. Start it up and check the trans fluid with dipstick. If none on stick, put some in it. You may have already ruined the transmission though. But you never know. Try putting fluid in. Might work.(for a while)

check your oil level may be low.

TRANSMISSION FLUIDS CAN BE CAUSED BY ONLY A COUPLE OF THINGS. MOST COMMON BEING A WORN OR BROKEN SEAL. THE TRANSMISSION SEALS ON MOST CARS ARE MADE FROM RUBBER OR METAL. BEING IN ALL KIND OF EXTREME TEMPS FOR YEARS ON END NOT TO MENTION THE PARTS MOVING AROUND THEM WILL EVENTUALLY CAUSE LEAKS. ALSO FAULTY INSTALLATION (OF A SEAL) CAN ALSO CAUSE A LEAK TO HAPPEN. THE ONLY OTHER THING THAT CAN CAUSE A LEAK TO MY KNOWLEGE WOULD BE IF YOU BOTTOMED OUT A CAR LOW ENOUGH THAT IT CAUSES DAMAGE TO THE TRANS CASE OR PAN. One cause of grinding when shifting into reverse is improper adjustment of the clutch linkage. If the adjustment is correct when the clutch is depressed the gears should stop turning and eliminate the grinding. Make sure there is some free play in the linkage when the clutch is not depressed. Most manual transmissions do not have a sychronized reverse gear. When you try to go into reverse from neutral, the transmission countershaft (which is linked to the pilot shaft) is still turning. The main shaft (which is linked to the tailshaft) is not turning. Therefore, since there is no sychronizer (or clutch brake like on a heavy truck tranny) the sliding cluctch gear (splined to the main shaft) grinds against the main shaft gear (floating over the main shaft but meshing its respecive countershaft gear through the reverse idler). The slider's function is to lock the main shaft gear to the main shaft thereby transmitting power to the rear wheels in the desired gear ratio (depending on which main shaft gear is locked to the main shaft). The way to cure this is to select a forward gear to stop the transmission and then go to reverse, all the while holding the clutch down. If it still won't go into gear you can either slip the clutch ever so slightly to "bump" the gears while gently pushing the stick into reverse (not too hard!! you can bend or break forks!! OUCH!!) or go into neutral, let the clutch all the way out, go into a forward gear and then reverse.

You say 'new' truck, 09? or new used? I have had 3 Fords, 3 w/ manual trans. case, if you go into 4x4 Low range, you must come to a complete stop before shifting the trans. case to 4x4 mode, and I always put trans (automatic) in neutral before slipping into 4x4, it engages smoothly, no grinding. 4x4 high range can be put in while moving, but I would let off the gas pedal, shift to 4x4 high range, then resume accelerating. If there is any grinding going on doing it as above, something isn't right. Check the trans. case fluid level also, to make sure that's not an issue.

No your tranny is most likely ok. I would be looking at the transfer case.

sounds like the clip on the rear output shaft its probably broke. do this by removing the rear driveshaft, and the tail of the transfer case, there are 4 bolts holding it in place. then grab the output shaft and see if it has any front to back movement. if so pull it all the way to the rear and you should see a groove at the front part of the shaft where the clip goes. Then you should find the pieces fo the clip in the tail housing. One person said he found the replacement clip at a local tranny shop. I am calling the dealership parts counter for a new clip for my 97 Tahoe tomorrow. Hope this helps..

Best way to shift from 2 hi into 4 hi or low is to have the vehicle completely stopped, in neutral, and then move the shifter lever. Any other way can damage your transfercase, which sounds like thats what you did. Trans shop.

Put the transmission in neutral, emergency brake off, foot off the brake pedal, now try shifting out of 4 wheel drive low. If that doesn't work, drive forward, and again do the above, trans. in neutral, roll to a stop, foot off brake, try to disengage. What you're probably experiencing is called drive shaft 'wind up', and it is very difficult to disengage, but do the above and it should shift out of 4 low. countrycurt0