Thanks very much everyone for the really great info. Much appreciated.
It seems I was wrong, but with a big truck camper in the back of the truck, I was worried that the stock factory jack would be insufficient. (?) Ford F350.
Also my thought about bringing a backup was so it could be a backup... just in case. We sometimes go camping where there is no cell service, and off the beaten path, so it would be very tough to get AAA.
Also maybe to put in place as a 2nd jack.
Yes, I wont get under the truck. Thanks.
