Body Firewall Hole

[John Casey]

Anyone know what this hole was for? It was covered with tape on my Jeep.



I found a fairly good firewall diagram, but it's unlabeled.

 

[CJ]

It's for a clutch master cylinder if your CJ had an original hydraulic clutch system. Looks like yours did but was converted to a manual system or someone put a hydraulic system on it at one time.
It was used on factory AMC 150 cid four cylinder CJs. What does your VIN say for your factory engine? Has it been swapped? (Link)-> CJ VIN Decoder -<

Master cylinder:


Slave cylinder:


Firewall location: