SHELBY GT 350 Member
Joined: Jan 2011
Location: Central Massachusetts
I went with a Boss/GT500 finned differential cover, which has the vent hole up on top. Then bought the "turkey baster" vent and installed it in that top hole. It looks tight up under there but it has not hit as far as I know.
I probably should have plugged the old vent, but left it there for now due to laziness.
So far, no problems / no leakage after at least a dozen 20-30 minute track sessions.
| 2010 GT coupe | Daily Driver with some Steeda and GT500 take-off stuff for the occasional track day