Why didn't Hummer go with 2WD w/selectable 4WD?

[ROADNOTCA]

Originally Posted by f5fstop

Drive one without the front prop shaft...you won't notice much of a difference.

You cannot drive without the front D-shaft because of the torque converter in the T-case. Ask me how I.....

[DURAMAX TIM]

Originally Posted by ROADNOTCA

You cannot drive without the front D-shaft because of the torque converter in the T-case. Ask me how I.....

lock it in 4 hi then it'll go.

[ROADNOTCA]

Originally Posted by DURAMAX TIM

lock it in 4 hi then it'll go.

Ho, look out!

[f5fstop]

Originally Posted by ROADNOTCA

You cannot drive without the front D-shaft because of the torque converter in the T-case. Ask me how I.....

Duh! Guess I missed the torque converter in the t/case. Could you help me out and tell me which number the torque converter might be?



And might I ask how you know?

[ROADNOTCA]

Originally Posted by f5fstop

Duh! Guess I missed the torque converter in the t/case. Could you help me out and tell me which number the torque converter might be?



And might I ask how you know?

I'm not an expert, so do we get the 40/60 split from a planetary? #203 for eg.?

[f5fstop]

More complicated than that, but primarily the differential planetary splits the torque to 40/60; item 231. There is no torque converter in the t/case.

[usetosellhummer]

troll

[ROADNOTCA]

Originally Posted by f5fstop

More complicated than that, but primarily the differential planetary splits the torque to 40/60; item 231. There is no torque converter in the t/case.

I think I see. Thats effectively a gear driven 40/60 except its through the chain. Then shifting into 4H moves the shaft, relative to the planetary, to a one-to-one drive(?) I would have thought they would have left street mode open with 50/50 and 4H lock 40/60 for OR.
It would seem to be very easy to design a 2WD select for this T-case.(?)

[f5fstop]

It would have been easier to go with a part time full wheel drive setup as used on 1/2 pickup trucks.

[ROADNOTCA]

Originally Posted by f5fstop

It would have been easier to go with a part time full wheel drive setup as used on 1/2 pickup trucks.

Exactly, something America has used almost universaly for decades.
Dropped the front D-shaft, shifted into 4Hlock; steering is lighter, thats for the wife.
It is also,,,,,,,uh,,,,,,,,quicker.....................
thats for me.

[PARAGON]

Originally Posted by ROADNOTCA

I would have thought they would have left street mode open with 50/50 and 4H lock 40/60 for OR.

What does this even supposed to mean. If GM wanted a 2wd selectable transfer case, they would have put one in from one of the other lines. Very simple. Since it's a Hummer, it gets full-time 4wd, period.

"left street mode open with 50/50 and 4H lock 40/60 for OR". That just makes no sense. What 4wd vehicle has a split of 40/60 designed in it for off-road and why would it?

[aetherH3]

I didn't start this thread to have an argument over it. I was just curious as to why they might have chose Full Time 4wd. I didn't realize that the MPG differences were so negligible. It had turned into a decent discussion... for a while.

[PARAGON]

Originally Posted by PhilD

More importantly, how long would a t-case locked at 40/60 last. Not very long.

shhhhh

don't argue