On white mountain roads nothing is jackknife proof.
When the load takes over.. the tractor always loses.
No amount of electronics can prevent the tire sliding sideways under load and gravity.
Jackknifes don't just happen by the drive tires kicking out, but
sometimes when the trailer tries to pass you going down hill,
On White Roads or Black Ice (I-94 Mt, Id, Wa, I-80 Ut, I-70 Co.).
Can also occur on high ground w/high winds from the North (I-80 3 Sisters Wy, I-90 ND).
The trailer has a mind of its own I assure you
FI$HING FOR THE NEXT TROPHY
$UPERMAN OPINIONS MAY CHANGE WITHOUT NOTICE