Differential breather spitting fluid

[mikyFIA]

To finish this, now with 200 miles on the clock, the problem has stopped. No spitting now. I changed the fluid, at about 130 miles, drained the old fluid and replaced it with Royal Purple 75W90 synthetic. The old fluid, and BTW about 1/3 of a quart was thrown out during the first 130 miles, seemed much thicker and smelled much stronger than the Royal Purple 75W90 replacement oil. I am thinking it was a higher viscosity and not synthetic, which could explain part of the problem. My builder is checking to see what Kirkham puts in these True-Trac units from the factory, but it may be wrong for driving. BTW, my "catch can" during the testing, to keep my wheel well clean, was a freezer Zip-Lock baggie around the vent filter with the corners cut to allow air in and out but block all the spraying. It worked great, but now I don't need it anymore.

[HP Classics]

Going to make the breather/vent modification to my CSX4000 rear diff cover as like the Jag setup.....Is there enough clearance for the cover to come out without removing any other pieces.

[SHLBYFIA]

Originally Posted by mikyFIA

To finish this, now with 200 miles on the clock, the problem has stopped. No spitting now. I changed the fluid, at about 130 miles, drained the old fluid and replaced it with Royal Purple 75W90 synthetic. The old fluid, and BTW about 1/3 of a quart was thrown out during the first 130 miles, seemed much thicker and smelled much stronger than the Royal Purple 75W90 replacement oil. I am thinking it was a higher viscosity and not synthetic, which could explain part of the problem. My builder is checking to see what Kirkham puts in these Torque-Trac units from the factory, but it may be wrong for driving. BTW, my "catch can" during the testing, to keep my wheel well clean, was a freezer Zip-Lock baggie around the vent filter with the corners cut to allow air in and out but block all the spraying. It worked great, but now I don't need it anymore.

Carrying over from Team Shelby forum. I have 89 miles on my CSX7994. It is spitting spewing quit a bit of differential fluid. It is a KMS True Track. Hope that it will find it's own level safely, after a few more miles. If not will try some of these fixes.

[rodneym]

SHLBYFIA,
You'll be surprised how much can come out.
May I ask who you bought your roller from?
From what I understand, the breather isn't done at the factory, it's installed when it gets "here".
What I'm really asking is, who installed your breather? "Shelby" or your local dealer?

[SHLBYFIA]

I would have to confirm. But I believe it was delivered to the dealer with the breather installed.

Did talk with Kirkham Motorsports today, and the are sending a kit that should sove the problem.
Apparently a fix is to disconnect the breather from the differential overflow, and connect their set to where the dff oil cooler would be connected. I don't't have much detail yet. But they are sending pictures, instructions, all necessary parts, including hoses, plug, filter, etc.
They did say that the wing gear(?) is so close to the overflow plug, that it is difficult to prevent oil from being flug into the overflow in this application.
If I misunderstood anything above, I will correct it when I receive the kit.

[rodneym]

SHLBYFIA,
What you're doing is what's in my post #3 of this thread, except in my Shelby I used a Wilwood catch and you'll likely use a Kirkham (nice!).
The only PITA is reaching the port without removing any panels. It can be done as long as you're not a really big guy. Very simple job but hard to reach.
Good luck.

[SHLBYFIA]

Yes, I read that post. It is reinforce my comfort that this will solve the problem with mine too. And that it is relatively uncomplicated.
Thanks