Rear end catch can? Anyone? Bueller?

[DadLife0724]

Decided to make my own catch can for the rear end, until I can come up with a couple hundred bucks to get a nice setup. Roast me, or throw me some suggestions. Seems to work so far. Haven't had it at WOT yet due to roads being wet during test drive. My only concern is the hose pulling off of the rear end. It does have slack so it can adjust during suspension travel. I wonder if it's enough slack.

P.S. Don't mind the clownish strut tower cover. That was previous owner who thought it was a good idea to paint random interior parts blue.

 

[bird_dog0347]

Do you run your car hard enough to need one? If you're not open tracking, racing, or auto-x then you shouldn't really need it, even if you have an IRS.

 

[Bullitt347]

I have spun my rear pinion gear 600 revolutions in 8.5 seconds at max power and did not have any overflow from the rear diff.
Now add in off throttle slowing down from 160 mph and still not a drop.
If you need a catch can for the rear diff, you either have over-filled the rear diff, or you are upside down along the road somewhere.

 

[DadLife0724]

Good possibility it is overfilled. The fill hole on the Drake girdle confuses me. Destructions say to fill till it overflows. It's more than the 8.8 calls for when done that way though. I do drive it like I stole it. I just currently got it running correctly and I am still I'm the stupidity phase.

 

[AeroCoupe]

I only use the drain plug on my TA girdle. Still use the Ford plug just above the pinion and to the right to fill it.

 

[nickyb]

Unnecessary roughness!!!!

 

[bird_dog0347]

Good possibility it is overfilled. The fill hole on the Drake girdle confuses me. Destructions say to fill till it overflows. It's more than the 8.8 calls for when done that way though. I do drive it like I stole it. I just currently got it running correctly and I am still I'm the stupidity phase.

Yeah, for a stick axle you're very likely overfilled. If it's an IRS and you run it HARD on track, you'll want a catch can but not for a street car.

 

[Noobz347]

Do a snorkel next!

 

[90trunk]

Did you look at the Ford S197 Remote Vent Upgrade kit for the 8.8? DR3Z-4022-A
They go for about $32.00. It seems to be a clean option for most applications.