Why is the labor estimate for a clutch replacement so low? $103-$131 on 2007 Jeep Wrangler

The mitchell labor guide show 4.5 hours to replace the Chutch Pressure Plate, an additional .2 for the pilot bearing and .3 to remove the flywheel for resurfacing.
$103-$131 makes no sense given what's involved. I look forward to your explaination

Checked myself to what you mean and of coarse your right. I think they have the pricing reversed. Maybe it's $425-$647 for labor and $96-$123 for parts.