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so back in last november or so i bought a what was claimed to be a 2000 450. clapped got it for 1k and needed a lot of work. i figured itd be a fun project regrets front diff was bone dry, and axles were snapped. has 1st gen front diff but has selectable 2x4 4x4 switch on throttle. cable leads to nothing (bc its a first gen front diff). the shaft from motor to diff i believe is an inch short and i can see an o-ring hanging out an inch. front bolts holes to diff dont line up. has cut out for what seems to be the second gen 4x4 acuators. diff really needs to be replaced. pretty shot. ugly and pouring rust. wont hold oil. i would have to rebeulid and sand blast the whole diff. so a swap would be nicer, i like the warn 424 but if i already have a second gen foreman with the longer frame and electric switch i dont want an ugly cable hanging out my bike. id like it to look factory clean. so my question is, if my shaft is already out to far and has the motor exposed bc the ring isnt sealing ****, would it be safe to look at getting a second gen, or first gen differential and or do the w424 swap. scared that if i go that route my motor will still be exposed but also dont want wiring issues. help thanks
 

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Hi, the older diff was engaged all the time and had a longer drive shaft as the diff is shorter because it doesn't have the actuator on it. I would look for the selectable front diff and reinstall it. Not a hard job. I found one used cheap worked great. My opinion is that is better than the warn drive shaft. However both would do the job at the end of the day,but if you have to fix or rebuild the front diff anyway I'd (and then get a warn kit) I'd just get the proper diff. Should be cheaper and cleaner looking.

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Hi, the older diff was engaged all the time and had a longer drive shaft as the diff is shorter because it doesn't have the actuator on it. I would look for the selectable front diff and reinstall it. Not a hard job. I found one used cheap worked great. My opinion is that is better than the warn drive shaft. However both would do the job at the end of the day,but if you have to fix or rebuild the front diff anyway I'd (and then get a warn kit) I'd just get the proper diff. Should be cheaper and cleaner looking.

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so you would agree that thats the wrong diff on it? bc thats what im trying to decide is if the OE 424 diff was supposed to be on this bike or not. if so i will definitely order the right diff. just want to make sure im getting the right one and thanks for the help!


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I would say so, and would put the word out looking for another proper one for sure. Should be some around

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Good evening sir, did you fix this already ? Did you use your old differential? If not do you wanna get rid of it? I broke my casing on one side and can't find a used one
 

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Good evening sir, did you fix this already ? Did you use your old differential? If not do you wanna get rid of it? I broke my casing on one side and can't find a used one
My 4 wheeler is 2000 450S all the time 4x4
 
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