I have broken the rear wheel drive shaft on my Jonway Master 250. How do I replace this and is there a free diagram of the complete assembly available?

There is an excellent 3 part video that may help you to fix this problem. Please see the 2nd and 3rd videos:
https://youtu.be/Vk_tpjKlbjM
https://youtu.be/DdiewLxTQDc
Things you can try:
(1) Remove casing over rear wheel drive assembly and perform a test run to assure all parts are moving as expected
(2) Lubricate the shafts with lightweight motor oil where the shaft penetrates into the gear box of each wheel
(3) Remove each rear wheel, inspect gears for damage and free movement. Grease up each drive gear and the shaft.
(4) Inspect gears on each wheel for damage.
(5) If none of the above fixes the problem, try swapping out the front wheels to the rear wheels provided the front wheels can accommodate the gearing on the rear wheels
(6) If this doesn't work try replacing the small gear assembly on the right rear wheel
These steps are illustrated in the videos.
Good luck and hope this helps.

Without seeing the vehicle, the only suggestion I can make is to look at the vehicle and ask yourself some questions.
Does the section I want to replace unbolt?
Do I have the tools to remove this section?
Can I find this part at a wrecking yard and what tools do I need?

This is assuming the vehicle is front wheel drive--

Good luck--

I hope this helps!

Okay first your other responses are completly illiterate ok if the drive shaft is spinning that means the motors running for all of you other answerers that means gas is going through the carb into the engine and it's working perfectly fine. Now to answer your question if the rear wheels aren't spinning you probably have the same problem I'm having with mine at the moment you've drivien it too hard and the gears on the bottom end of your drive shaft aren't warn but inside the bell housing of your rear end where the drive ahft enters the gears are so worn you can't feel them in that case you would disconnect all of your sub frame conecters and the back shock then your rear end will come away from the four wheeler check the gears I told you about and if they are worn go buy new ones. Problem solved

what about it?

conventional axle or limited slip? Get axle code off door sticker.

SECTION 205-02: Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear 1998 Explorer/Mountaineer Workshop Manual
IN-VEHICLE REPAIR Rear Wheel Bearing and Axle Shaft Oil Seal -4.0L SOHC and 4.0L EI, Conventional
Special Tool(s) Axle Seal Replacer
T83T-1175-A Axle Wheel Bearing Puller
T83T-1225-A Axle Wheel Bearing Replacer
T83T-1225-B Driver Handle
T80T-4000-W Impact Slide Hammer
T50T-100-A
Removal

1. Remove the axle shaft; refer to Axle Shaft in this section.

Axle Shaft Removal

1. CAUTION: Do not use heat to loosen a seized lug nut. Heat can damage the wheel (1007) and the rear wheel bearings (1225).
   Loosen the lug nuts (1012).
   1. Remove the center cap.
   1. With the weight of the vehicle on the wheels, loosen the lug nuts.

1. Raise and support the vehicle.

1. Remove the wheel and tire assembly.
   1. Remove the lug nuts.
   1. Remove the wheel and tire assembly.

1. Remove the axle housing cover (4033).
   1. Loosen the axle housing cover bolts (4346) and drain the rear axle (4001).
   1. Remove the axle housing cover bolts.
   1. Remove the axle housing cover.

1. Remove the rear disc brake rotors (2C026); refer to Section 206-04 .

1. CAUTION: Once the differential pinion shaft (4211) has been removed, turning the differential case (4204) or an axle shaft (4234) will cause the differential pinion gears (4215) to fall out of the assembly. This could result in chipped or damaged components.
   Remove the differential pinion shaft.
   1. Remove the differential pinion shaft lock bolt.
   1. Remove the differential pinion shaft.

1. CAUTION: Do not damage the rubber O-rings in the U-washer grooves.
   Remove the U-washers (4N237).
   1. Push the axle shafts inboard.
   1. Remove the U-washers.

1. Reinstall the differential pinion shaft.
   1. Install the differential pinion shaft.
   1. Install the differential pinion shaft lock bolt finger-tight.

1. CAUTION: Do not damage the inner wheel bearing oil seal (1177).
   Remove the two axle shafts.

Installation

1. Lubricate the lip of the inner wheel bearing oil seal.
   • Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.

1. CAUTION: Once the differential pinion shaft has been removed, turning the differential case or an axle shaft will cause the differential pinion gears to fall out of the assembly. This could result in chipped or damaged components.
   Remove the differential pinion shaft.
   1. Remove the differential pinion shaft lock bolt.
   1. Remove the differential pinion shaft.

1. CAUTION: Do not damage the inner wheel bearing oil seal.
   Install the two axle shafts.

1. CAUTION: Do not damage the rubber O-rings in the U-washer grooves.
   Install the U-washers.
   1. Position the two U-washers on the button end of the axle shafts.
   1. Pull the axle shafts outward.

1. Install the differential pinion shaft.
   1. Align the hole in the differential pinion shaft with the differential pinion shaft lock bolt hole.
   1. Install the differential pinion shaft lock bolt.

1. Install the rear disc brake rotors; refer to Section 206-04 .

1. Install the axle housing cover and fill the rear axle housing (4010) with 2.4 liters (5.5 pints) of specified lubricant; refer to Axle Housing Cover in this section.

1. WARNING: Always remove any corrosion, dirt or foreign material that may be present on the mounting surfaces of the wheel or the surface of the wheel hub or rear disc brake rotor that contacts the wheel. Installing wheels without proper metal-to-metal contact at the wheel mounting surfaces can cause the lug nut to loosen and the wheel to come off while the vehicle is in motion, causing loss of control.
   Clean the wheel hub and mounting surfaces.

1. Install the tire and wheel assembly.
   1. Position the tire and wheel assembly.
   1. Install the lug nuts and lower the vehicle.
   1. Tighten the lug nuts.
   1. Install the center cap.

1. CAUTION: Never remove the axle shaft oil seal by itself. Always remove the rear wheel bearing and the axle shaft oil seal at the same time.
   NOTE: If the axle shaft oil seal is leaking, the axle housing vent may be plugged with debris.
   Use Impact Slide Hammer and Axle Wheel Bearing Puller to remove the rear wheel bearing and the axle shaft oil seal.

Installation

1. Lubricate the new rear wheel bearing.
   1. Use Thermally Stable Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.

1. Use Axle Wheel Bearing Replacer with Driver Handle to install the rear wheel bearing.

1. Lubricate the lip of the new axle shaft oil seal.
   • Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.

1. Use Axle Seal Replacer with Driver Handle to install the axle shaft oil seal.

1. Install the axle shaft; refer to Axle Shaft in this section.

1. loosen center wheel nut (look up utube)
2. remove wheels
3. remove rod end
4. remove strut bolts
5. remove center wheel bolts
6. press center shaft off or use a brass punch
7. drop rotor assembly down
8. pull shaft out ( check for circlips or bolting plates)

The Constant Velocity (CV) joints are located on the inner and outer edges of the axle shaft. The axle shaft runs through the hub and bearing in the spindle.

place a jack under the transmission and raise it a bit unbolt (the transmission mount) "i think thats what u mean its all i know that above the transmission holding it in place. You'll need a rachet wrench for this and a long onbe at that,, if not you can use a piece of pipe,, you'll want the extra power.. Unbolt it and lift it off,, if its still too tight jack the transmission up a bit.That providing your refering to the transmissing mounting rubber Which is all i can think you man its the only thing above the transmission. The ABS is 2 parts ,, its a mastercylinder and a booster. Its mounted on the firewall (its the thing you pour brake fluid in.) Unjack any wire or hoses by unscrewiung them and pluging them with something.. DUCT TAAPE or rescue tape works.. Unbloth both the mastercylinder and booster from the firewall... unmounting the drive shat.. well you'll see where it bolts ,, front and back.. Thats the easir part.. you will heed o happer, pull and tug the shaft until it pops out.. Hope I was helpful.. if you need more help please feel free to ask.

The question you asked me to clarify was really quite simple..... I needed a diagram of rear wheel bearing assembly for a 2000 Dodge Grand Caravan 3.38 litre, 6 cylinder, 2 wheel drive vehicle. You couldn't provide me with a diagram so I took the wheel off looked at the old one then the new one and just did it myself. Thanks for not helping.
Stormin Norman