Re: Why can\'t I use the low range in 2wd?

there is a small pin called a "pill" (looks like a vitamin) between the to shift rails that prevent two wheel low, and also having the front and rear in different ranges ( rear in high, front in low as an example) removing the pill or grinding a bigger notch in the rail gives you more options and more responsabilities. iresponsable people will have lots more spare parts after this change if you know what I mean.
good luck, jjc

 

Re: Why can\'t I use the low range in 2wd?

OK, I can see why you don't want different ranges front and back. But, the t-case doesn't know what's going on at the axles. With my hubs locked and t-case in 4LO, I crawl just nicely. If I have it in 4LO without the hubs locked, I have no low-range. (Both axles turning, just no front wheels pulling).

 

Re: Why can\'t I use the low range in 2wd?

Im not sure Im understand your question, Ill guess its one of 2 questions, and guess at both OK?

1) front hubs unlocked, 4lo, in effect is 2wd ( rear) lo range..
the manuals tell you not to do this, I figure because it puts more load on teh rear than usual ( 100% vs 50%), thats my theory anyway!

2) if your actually trying to get #1 ( above) and it wont pull in 4lo with the front hubs unlocked, you have either a non pulling rear axle ( broke), or something other than a dana300 Tcase, or a dana300 thats not putting power to the rear output in lo range.

if it sthe axle you wont move in 2HI either.

maybe, when you shift it into Lo range, its not fully seated in teh Tcase, try shifting in with e front hubs locked ( to rotate the front a bit) then unlocking the front hubs to see if you get rearwd lo range that way.

OzarkJeep

77 CJ5,All Jeep, Far from Stock, farther from driveable!

 

Re: Why can\'t I use the low range in 2wd?

Thanks Ozark. I am trying for your scenario #1 (low range with rear axle only). I don't have the owners manual, so I didn't know about the 100% power to the rear (it makes sense). I tried it this weekend, but only for a couple feet. Maybe the sun was in my brain and I don't remember it right - I'll try again. I'm mostly just curious - not trying to start a habit.

 

Re: Why can\'t I use the low range in 2wd?

Like Ozark said, unless you have broken parts, there's no reason why you can't have the transfer case in 4low and have the hubs unlocked. The transfer case doesn't know if the hubs are locked or unlocked, at least with the Dana 300. Just be careful not to whale on the throttle.

How does the blind man pick up the "Seeing-eye" dogpoop?

 

Re: Why can\'t I use the low range in 2wd?

yes you can do that.. run with the hubs unlocked... just dont get to crazy with the throttle.. have done this plenty myself.. never had any problems.. i would say.. i got several miles under the belt this way.. i dont have a reason to do this everyday.. it was due to breakage.. and i still needed to go slow..

survival is instinct, but living takes guts

http://www.jeepgod.net

 

Re: Why can\'t I use the low range in 2wd?

I've been doing that for years for short distances, like backing up with a trailer for more control. Like was said previously, the only reason I can think of is the torque multiplication on just one axle, just take it easy.

Brad
ORC Land Use Section Editor
http://www.off-road.com/land

 

Re: Why can\'t I use the low range in 2wd?

The ideal is a twin stick that allows:
2wd rear lo
2wd rear hi
2wd front lo
2wd front hi
4wd hi or lo
There are two potential problems with this setup. First is that you can put the axles in different gears and second is that a Jeep is not really a very good front wheel drive vehicle. Most twin stick operations do not allow a 2wd front hi. This prevents the axles from being engaged in different gears and obviously prevents front wheel high. My guess is that the primary reason for this setup is to prevent differnt gears in each axle rather than front wheel high.

I certainly am not an expert, but it seems to me that there's no way that engaging or disengaging the front hubs can have any effect what-so-ever on the gears in the transfer case. If the t/c is in low range, it is in low range. Disconnecting the hubs on front just disconnects the wheels from the axle. Has nothing to do with the transfer case.

I suggest that you make sure the veh is in low range first of all. If you are unsure, try starting off in 2nd or 3rd while it is low range. Put it in high gear as soon as you can in low range. This will really show you the difference between hi and lo. Then when you are certain that you are in lo range, unlock the hubs. My guess is that you will see no difference at all in the speed/rpms. IOW, you will still be in low range.

Doug '97 TJ
Creator of the CBrack
http://www.CBrack.com

 

Re: Why can\'t I use the low range in 2wd?

If you twin-stick the Dana 300 you don't really need to remove interlock. You get a some of new combinations of front/rear-hi/low when you twin stick, but the Dana 300 won't let you have front only hi-range without removing the interlock. With the Dana 20 you have to remove the intelock regardless. There is a scout with a factory twin stick Dana 20 at a junk yard near my house if anyone cares. Don't know the price though. I've made my own twin sticks for both 300's and 20's, pretty simple. I can't justify giving some body $130 for a couple of bent pieces of metal. My $0.02

My name is Ted, and I'm a Jeep-a-holic. /wwwthreads_images/icons/laugh.gif
[email]tzeiger@excite.com[/email]

 

Re: Why can\'t I use the low range in 2wd?

OK, my bad. I tried it last night on the way home and everythings works fine. I must have had it in 4HI and thought it was in 4LO. Made for a good discussion though./wwwthreads_images/icons/blush.gif

HighHood, any info you've got on those homemade twinsticks would be great. I'd love to have a set, but can't find anyone to give me the cash.