2010 Honda rancher Trax 420 Will not engage in reverse

[deanndrasue]

Hi I'm new to the site thank you in advance for your help and your time. I was hoping if anyone would be able to help me figure out why my rancher fourtrax reverse all of a sudden just doesn't work. I was plowing late one night and it was pretty cold out and the reverse worked fine. Then the next thing I know I go into reverse to back up again and it shifts down into reverse just fine that's not the problem but when I actually try to move in reverse the four wheeler just hops around like the tires want to move and they're trying to move however nothing will make it move it's weird. I don't know if it is the tires that are actually doing the hopping/movement or what it is but its like the back end just starts hopping / bouncing all around and stuff it's really strange actually lol but yeah 😣😕
~Deanndra

[Ajmboy]

Did you happen to go over anything or hit anything? It sounds like its not fully engaging into reverse. Also, is there any snow/ice build up underneath? That's an electronic shift at the handle bar, right?

[Mech]

Hi. There are two types of transmission in those, an automatic, and a manual with or without an electric shift, do you know what sort of transmission it is?

If it drives in forwards but not in reverse it sounds like the gearbox has bust something(reverse gear). There's a small chance the back axle is playing up but I'd suspect the gearbox. You could get someone to look at the drive shaft going from the engine to the rear axle while it's doing the shuddering to see if the shaft is turning steadily or whether it's shuddering too. If the shaft is turning steadily but the real wheels are shuddering then it points to the back axle, or, if the shaft is not turning at a constant speed it points to something inside the gearbox.

The next check is to drain and look at the engine oil or back axle oil, depending on what you found in the first inspection, to see if it has metal flakes or chunks in it.

 

[Mech]

Oh, and is it two wheel drive or four ? Do you know the model TRX420F** or TRXT**