Ok, this might be a really dumb question: When shifting the transfer case from 2Hi to 4Hi and vice-versa "on the fly", is it necessary to use the clutch, or just shift the lever alone? I've engaged 4WD about a dozen times doing so, assuming it IS necessary (I know it's required when shifting into 4Lo). The transfer lever is still quite stiff to shift and when I read the manual, it doesn't explicitly state to use the clutch when shifting the transfer case from 2Hi to 4Hi. I realise that I'm not actually changing gears here, just engaging the front axle.

 

If it isn't a Rubi then no clutch 4 4HI

 

I didn't think it mattered if it was a Rubi or other model in this case. Although I usually shift from 2H to 4HI on the fly, I also switch at a standstill with clutch disengaged.

According to the manual, shouldn't really matter as long as you don't switch when only the front or rear wheels are spinning or you're going over 50mph.

 

What???

No need to use the clutch, Rubi or not. Just don't be accelerating or decelerating. Best done with engine speed matched to vehicle speed.

 

X2....on what kachad stated.

Personally, I would not recommend you shift on the fly from 2WD to 4H going at speeds above 60km/hr which I think is around 35 or 40MPH??? I just think it's a little tough on the hubs and transfer case.

 

Thanks guys. No, not a Rubi (no diesel Rubicon...yet). The manual is clear about being below 50 mph/80 kph and having both axles rotating at the same speed, which seems commonsense. There was just no reference to the clutch itself, other than shifting from 4H to 4L.

 

X3 on the point of not being on the gas pedal.

 

No clutch necessary on any model!

 

Get the car moving, rollings coupel miles an hour and then just pull it up transfers really smooth and nice and best way to get it transfered

 

I was thinking of Rubi and 4LO needing a clutch, personally I never match engine speed to vehicle speed. That is so hard to do I don't even think it is possible.