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Old 12-06-2009, 02:43 PM   #1
Benelli
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NP203 won't go into hi-loc

I did the hubs and conversion, and now that it's snowed half a foot I can hardly get down the road in two wheel drive. I have the hubs locked, it'll go into Hi, Lo-loc, Lo and Nuetral, but it will not go into Hi-loc.

I've heard that often the linkage gets "frozen" could that be the case? and what's the cure to such an ailment?
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Old 12-06-2009, 03:49 PM   #2
LONGHAIR
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Re: NP203 won't go into hi-loc

Yes, most of the time the shifter is the problem. It is usually as simple as disassemble, clean-up, grease, re-assemble.
While doing this, you will notice that there are "alignment" holes in the levers. IIRC, this in the neutral position, so adjust your linkage if necessary.

BTW, it is generally easier to do all of this from the top. Pull back the floor mat and remove the tunnel...easy access, far better than laying on your back eating dirt and rust.
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As for reading directions...
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Old 12-06-2009, 05:35 PM   #3
Benelli
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Re: NP203 won't go into hi-loc

The tunnel as in where the shifter sits, just the 6 or 8 screws that hold in the rubber piece and metal outline?
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1979 Chevy K10 (H/D Front end) - 350 w/ Holley Truck Avenger, Weinald Intake manifold, headers, bored .060 over, mild cam, Built up TH350 (TranStar Shift kit) with a part-timed NP203 t-case SOLD ($3,000)
1997 Chevy Silverado 1500 - 4.3 vortec, extended cab, 21 highway MPG, stock. "Red" SOLD ($3,000)
1987 Toyota 4wd Pick-up - work in progress, future DD SOLD ($1,850)
1998 Dodge Ram 2500 Cummins 5spd Quad cab - old 12 valve with some work done
2004 Chevy Silverado - Black, 4x4, 5.3L, stock for now

Underneath that rust is a heart of gold
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Old 12-06-2009, 06:10 PM   #4
LONGHAIR
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Re: NP203 won't go into hi-loc

No, no...the tunnel is the entire "hump" area of the floor. It has several bolts that hold it in place along each side and a few across the back near the seat. It gives you lots of space. You wouldn't get too far through the shifter hole.
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Quote:
Originally Posted by Longhorn Man View Post
As for reading directions...
The directions are nothing but another man's opinion.
Learn from the mistakes of others, you won't live long enough to make them all yourself...

Bad planning on your part does not necessarily constitute an instant emergency on my part....

The great thing about being a pessimist is that you are either pleasantly surprised or right.
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Old 12-06-2009, 06:31 PM   #5
OrrieG
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Re: NP203 won't go into hi-loc

More info here...

http://67-72chevytrucks.com/vboard/s...d.php?t=371839
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Old 12-06-2009, 11:18 PM   #6
Benelli
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Re: NP203 won't go into hi-loc

So you would have to take out the seat then?
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1979 Chevy K10 (H/D Front end) - 350 w/ Holley Truck Avenger, Weinald Intake manifold, headers, bored .060 over, mild cam, Built up TH350 (TranStar Shift kit) with a part-timed NP203 t-case SOLD ($3,000)
1997 Chevy Silverado 1500 - 4.3 vortec, extended cab, 21 highway MPG, stock. "Red" SOLD ($3,000)
1987 Toyota 4wd Pick-up - work in progress, future DD SOLD ($1,850)
1998 Dodge Ram 2500 Cummins 5spd Quad cab - old 12 valve with some work done
2004 Chevy Silverado - Black, 4x4, 5.3L, stock for now

Underneath that rust is a heart of gold
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Old 12-07-2009, 08:23 PM   #7
LONGHAIR
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Re: NP203 won't go into hi-loc

Nope, just slide it back.
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Quote:
Originally Posted by Longhorn Man View Post
As for reading directions...
The directions are nothing but another man's opinion.
Learn from the mistakes of others, you won't live long enough to make them all yourself...

Bad planning on your part does not necessarily constitute an instant emergency on my part....

The great thing about being a pessimist is that you are either pleasantly surprised or right.
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Old 12-08-2009, 12:43 PM   #8
willett
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Re: NP203 won't go into hi-loc

pulling the seat will make it easier though.

you may have to drop your tanks to get at the seat nuts on the underside of the cab though.
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Old 12-08-2009, 05:18 PM   #9
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Re: NP203 won't go into hi-loc

Those nuts should be welded in the floor pans, unless your floors are rusty or the welds are broken then you might have to.
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