Petopia.com shows lvl 75-77 gorillas in Sholazar Basin.

If you're willing to go without a gorilla for a little bit, there are new ones in Wrath starting at level 75 according to Petopia.

http://petopia.brashendeavors.net/index.php

When I tamed Uhk'loc he was 5 levels below me. He's now 12 below me. I put my 66 hunter on the PTR, took him out and he was 61 (nice!). He was able to tank the 63 elite rock guys outside of Telemat (hellfire) with no problem. He never lost aggro. At least I know I'll be able to quest with him to level him. It was almost impossible before.

@ Bond ^

Yes, I was referring to level 70 content (pre-WOTLK) :)

If you were going to do a real instance, you'd bring a real healer to heal the pet. I'd still be doubtful that a pet could tank a heroic, but we will see. They can get some pretty insane armor, and with spirit link their incoming healing is buffed a pretty decent amount.

QQ Rugus...

Apparently you have never leveled up a low level pet tamed with a lvl 70 up to level cap. Examples like the Grimtotem Spirit Guide (lvl 30), Ghost Saber (lvl 19), or something else like a turtle (oh gawd that is a grind). All this and more before the current pet leveling buffs.

Be thankful puke, that you won't have to truly earn it anymore.

I for one, am thankful for the change even though the loss of the "badge of honor" for having leveled rare/unique low pets to 70 after my hunters had already reached 70.

Actually Uhk'loc is not a problem for lvl70s. I simply use him for my dailies. Got him 2 days ago and he's lvl60 now. I'll continue to use him for dailies till the patch comes out and I dont expect taking him up 65>70 will be all that much of a chore.