On the `95 model trucks talked about below, do you really have to wait as long as one minute for the 4-WD to engage and as long as two minutes as someone said after shutting off the engine when 4-WD is engaged? Sounds like it would be faster to turn around and take a different route than wait on it! The last Chevy 4-WD we owned was a `76 model so I'm just asking out of curiousity. Or ignorance, take your pick.