Dryer worked, but there was no heat to dry the load.

Removed from lower panel. Just popped it open
with a screw driver.
Unplugged dryer and shut off gas by the gas shut-off valve.
Loacated the gas igniter element and removed it
by pulling up. It is only healed in place by a metel
like a clothes pin.
Using caution slid new unit down and into the pinching device.
Plugged in power cord and the gas.
Turned the unit on and it worked !!!
This was worth the try. Better than buying a new
dryer with the economy the way it is now.