[hdhp65]

Does anyone know the thred size of the front and rear diff breathers? I searched and got the OEM part number but it does not say the thread size... 1/8 pipe? 1/4 pipe? Metric? SAE?

I will continue to search but if someone knows please share thank you!

HDHP

[4Reak Show]

Originally Posted by hdhp65

Does anyone know the thred size of the front and rear diff breathers? I searched and got the OEM part number but it does not say the thread size... 1/8 pipe? 1/4 pipe? Metric? SAE?



I will continue to search but if someone knows please share thank you!



HDHP

I had to find a special swivel 90 degree for my 2nd gen front diff breather to clear.

Metric thread are known as BSPT (British standard pipe thread) those are the tapered ones. There is also BSPP (British standard pipe PARALLEL) which is NOT what you need as those are straight thread not tapered.

The size I used is 1/8" BSPT and it worked great. Use Teflon tape when installing, wrapped in the correct direction so the tape continues to roll WITH threading instead of peeling off.

Good luck.

[hdhp65]

Originally Posted by 4Reak Show

I had to find a special swivel 90 degree for my 2nd gen front diff breather to clear.

Metric thread are known as BSPT (British standard pipe thread) those are the tapered ones. There is also BSPP (British standard pipe PARALLEL) which is NOT what you need as those are straight thread not tapered.

The size I used is 1/8" BSPT and it worked great. Use Teflon tape when installing, wrapped in the correct direction so the tape continues to roll WITH threading instead of peeling off.

Good luck.

Thank You 4Reak Show!!

[jcaino]

Not sure, but just grab PN 90404-51319 - barbed union fitting that will install in the factory breather spot and let you run tubing to put the breather wherever you want.

[phatcheeks]

https://www.amazon.com/dp/B00P2S0TKQ...v_ov_lig_dp_it

m10x1.0 i believe

[BackOff]

Is a Taco guy selling the "kit" for 30 bones.

For sale: Differential Breather Mod Kits! - $30 - Free shipping or free install! | Tacoma World

[hdhp65]

Thanks for all the replies! I have the info I need and I made my own
"Diff Breather Relocation Kit" Total cost... Under $15.00

Thanks again


HDHP

[ElDuck]

Originally Posted by jcaino

Not sure, but just grab PN 90404-51319 - barbed union fitting that will install in the factory breather spot and let you run tubing to put the breather wherever you want.

I'd assume it is, but does that barbed union work on the front diff as well, or already there?

[jcaino]

Originally Posted by ElDuck

I'd assume it is, but does that barbed union work on the front diff as well, or already there?

Most people don't mess with the front - your front diff breather is already located up in the engine compartment on the drivers side. There's already a barb on the front diff for the line that runs up.

[Bigcee]

Originally Posted by hdhp65

Thanks for all the replies! I have the info I need and I made my own
"Diff Breather Relocation Kit" Total cost... Under $15.00

Thanks again


HDHP

How did you do it? What parts did you use?

[Hi-desertT4R]

Originally Posted by Bigcee

How did you do it? What parts did you use?

Post #25 on page two of my build thread has the part numbers needed.

Replace the factory breather on the rear diff with the barbed (union), run the rubber hose with the Dorman breather up into the fuel filler next to the fuel cap behind the door. I didn’t do the last step exactly. I zip tied it to the filler neck behind the rubber flashing around the fuel cap. There are complete kits but I can’t remember who makes them. Hit me up if you need clarification

[Bigcee]

Originally Posted by Hi-desertT4R

Post #25 on page two of my build thread has the part numbers needed.

Replace the factory breather on the rear diff with the barbed (union), run the rubber hose with the Dorman breather up into the fuel filler next to the fuel cap behind the door. I didn’t do the last step exactly. I zip tied it to the filler neck behind the rubber flashing around the fuel cap. There are complete kits but I can’t remember who makes them. Hit me up if you need clarification

Thanks! I saw your post. Really enjoying the build thread. I'll be doing something very similar on mine hopefully soon.