I'm thinking about keeping my kj in full time 4x4. It seems a smoother ride when it is in there anyways, so really, what could the down side be? Increase wear? Less gas mileage?

_________________
02 KJ "Frank The Turtle"
http://www.cardomain.com/ride/3111598

Slightly decreased fuel mileage, I drive in Full time pretty much the all winter. With the stock tires, the KJ would get very squirrelly. Suprisingly, (or maybe not) I don't use full time as much as I used to. The siped Goodyear MTR's handle much better on wet roads than those slick as snot SRA's

_________________
2005 CRD "Ol' Blue"
Red Ryder carbine-action, two hundred shot range model air rifle with a compass in the stock and this thing which tells time.
My build page- RL Komodo Rear and TJM Front Bumper, armored, lifted, JBA Steel D30, 4.10s and ARB air lockers.

Less gas mileage is really the only down side.

The front driveshaft is always turning anyway so the wear increase is negligable.

_________________
02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks

With the "full time t-case" you won't hurt anything. I have noticed very little difference in gas mileage with mine in full time as opposed to 2wd. You can't unlock your front hubs so almost everything is turning anyway.

_________________
05 BLACK KJ - 42RLE & NP242
Skids, Hooks, Bent Rock Rail, Lifted, A/T's, etc.
NY and PA and Florida ONF Special Custom Organic Trail Rash

Same here. I found myself using it a lot with the SR-A's but now that I have Revos, I have to remind myself to put it in AWD in a downpour, but yes, there is only a very slight difference in fuel economy in full-time. Not really a huge drawback for the added safety. My other vehicle's a quattro, so you know how I feel.

_________________

2005 Silver CRD Limited
245/75R16 GoodYear Duratracs
Fumoto drain | ProVent CCV Filter
Stanadyne FM100 filter | Cummins fuel pump
GDE Eco | SEGR | BoulderBars | FrankenLift | Frankenskids

Kind of off on a tangent here ... so if the front drive shaft is always turning then what happens when the front diff grenades? Is it "safe" to keep there for the limp home? Will something bind up badly and you end up with accident?

_________________
DIRTY KJ :: flickr photostream
"Primitive life is very common and intelligent life is fairly rare ... some would say it has yet to occur on Earth" --- Stephen Hawking

I dont think the mpg should go down any at all. Putting it in full time just puts torque on parts that were already turning so it shouldnt matter.

It will put more wear and tear on the front drive shaft, front diff, and cv joints but its all made for it so you should use it. I usually have it in full time when it rains.

_________________
LOST KJ'S
Where are you going???
Current Jeep: 2004 Jeep Liberty
-Atlantic Blue
-Air Ride Rear Suspension ; OME/Rustys Lift ; Powertrax Locker ; Moog Lower Ball-Joints ; 245/70/16 Yokohama Geolander A/T-S's on MOABS ; Flowmaster 50 SUV
Lost #007082
http://www.cardomain.com/id/jeepjeepster

No.

If you gernade the front diff both CV shafts and the front driveshaft will need to come out to limp back home.The same is true if you blow a CV joint as well,keep a 35mm socket handy at all times.

I have towed a KJ with front wheels on a dolly without a problem, but the owners manual says its a no-no.

_________________
2005 CRD "Ol' Blue"
Red Ryder carbine-action, two hundred shot range model air rifle with a compass in the stock and this thing which tells time.
My build page- RL Komodo Rear and TJM Front Bumper, armored, lifted, JBA Steel D30, 4.10s and ARB air lockers.