A air cut off wheel drill with a hole saw saber saw or hack saw could be used to do the job.
Cj7 heater blower motor upgrade.
Chevy heater upgrade for a cj7 the best thing to do is take your stock blower motor to the parts store with you or have them pull a new cj blower if your is gone.
Following is a description of the disassembly and reassembly and a list of parts used in the process.
Jeep cj7 heater restoration these are the final photos of the finished lower heater rebuild using the blazer motor upgrade.
Jeep heater blower motor upgrade.
Steps for the heater motor upgrade the only thing tricky about doing the upgrade is you will have to enlarge the opening in the fire wall to 3 1 4 to accommodate the larger diameter motor.
Be prepared for wherever the jeep life takes you jeeps were made for adventure and they re not used to being told no.
Jeep cj7 5 out of 5 stars 1 1 product ratings heater blower motor 3 speed for jeep cj5 cj7 cj8 wrangler 78 90 crown 56001449.
It is remarkably easy and it greatly increases the air flow through the heating system.
Match up the shaft end.