4 / 2 we selector

[eighteenninetytwo]

My 75 has the front driveline disconnected. It has a 203 transfer case. Seller said it had full time 4wd but the selector has a 2nd and 4wd option. Should I drive it in 4wd or 2wd, or does it make any difference at all with front driveline not connected.

[eighteenninetytwo]

bumping this up =- i have to drive it to the shop at 2pm PST and don't want to screw it up before I get it there

[eighteenninetytwo]

help me Obi wan kenobi....

[Jonboy]

If the front driveshaft is disconnected, it *shouldn't* matter. a 203 case should have Hi Loc, Hi, Neutral, Low, and Low Loc positions. You will want to be in Hi position.

[eighteenninetytwo]

As i'm new at this - stupid question. On my old 4x4 to change you have to have the engine on but be in neutral and have the wheels straight, then the 2 / 4H / 4L selector moves easily. This one wouldn't budge easily yesterday - i was in PARK - am I missing something stupid? i didn't want to force it as I was on the way to the shop to get the whole thing checked out so it was more important to just get there than try experimenting at this time. is there a catch or something I'm missing or does the engine have to be off or something?

[Jonboy]

I haven't had a 4x4 in over 15 years, so this is out of memory, but it seems like the trans needs to be in neutral to go between the hi and low ranges. I believe you can go between the open and Loc positions (hi to hi loc or low to low loc) under 15 MPH or so. The open positions act like a differential; if it encounters resistance, that wheel will stop turning. Putting the case in loc locks the diff in the transfer case. (as I recall).

You might check out the 4x4 section as well. It might get a bit more traffic than the Blazer board, since your questions aren't so much Blazer specific, but more 4x4 oriented.