Facts: '89 V1500 (1/2-ton) GMC Suburban SLE, factory towing package (some call
this combo a 'heavy half'), 3.73 gears, posi rear end, 700R4 trans, stock
What type of differential is on the front of this Suburban? When I turned a
corner, going from a snow-filled alley onto a clear concrete street, the front
noisily protested. I slowly backed up a bit while straightening the front
wheels out, stopped, placed the trans in neutral, shifted the transfer case
from 4H to 2H, then placed the trans in reverse and backed down the alley at
least ten feet (to disengage the automatic front hubs, per factory manual).
I know that a "spool" type differential does NOT like dealing with any
direction other than straight ahead on dry pavement.
Geoff in Wisconsin