Any one know the hex wrench size of the drain on the transfer case? It is magnum sized. I want to change my fluid but don't know which size wrench to buy. Thanks for the help, Matt

 

Matt, I'm pretty positive it's a 3/8... I changed mine not too long ago at 70,000 and it was still bright red...

 

Yah. It's gargantuan. Mine was ever so slightly brown and even then I think it was just the shadows playing tricks on my eyes. It had 70k on it also but it had been used many a times.

 

3/8 does fit but i always use my crv-10 allen socket adapter. so ithink that means 10mm, little more snug fitting

 

Hmmm, Isn't a 10mm a good bit smaller? Eyeballing it, it appears much smaller. I figured it would be 17mm or more?

 

17mm is the drain plug size on the NV5600. Is the t-case the same?

I thought the T-case was just one of those stick-a-ratchet-in-and-unscrew kinda jobs...(where theres a square drive of 3/8" or 1/2")

 

It's big... but not a 'ratchet job'

I believe it is metric.... would not trust my memory in a million yrs to try and remember the size! I do remember it's the biggest in my metric set... which doesn't help you much.

Come on, somebody... go outside & measure it! I would if I had my tools with me... honest I would!

RJ

 

No it's a hex key screw and it is big. Fair question though since the oil pan is a 3/8 square ratchet drive plug. I do think you are right on the NV5600, I read the other day it was a 17mm.

I think my biggest is a 10mm and it wasn't even close. I even went to look at Harbor Freight the other day and their biggest was a 10mm. Figured I'd find the size before I went to Sears or elsewhere.

 

Hey don't look at me-- my truck is 650 miles away and will be for a couple years

 

Wow, that sucks out loud. Sorry to hear that. I guess Honolulu can't be too bad otherwise though.....can it?

 

Anyone on the nightshift got any clue on the Allen wrench size on the transfer case drain and fill?

 

just changed mine a hour ago and it is the number ten on the allen socket for the 3/8 rachet ( I think its mm) or whatever.

 

same with mine

it was a 3/8th

Rick

 

10mm allen wrench

 

ok, I have to check my allen wrenches to see what my biggest is. I thought it was a 10, must be smaller. Thanks!