Offroad-Express

Reading on the fourms... Do you guys ever use Mopar friction modifer with your TC fluid (NV247)?

So much info out there...

No, but use a special fluid that is Mopar only. Unlike 231s, these TCs don't take ATF 4.

Your best source of information for Grand Cherokees is www.wjjeeps.com

Thanks TJ, thats where I found the thread, there was lots of flaming and abuse but thats not to say he didn't have a valid point. It's almost like they felt threatened by the suggestion, God damned unamerican to add anything to a Mopar product, even if it's another Mopar product!

I feel I need to aplogise for asking so many questions but I'm getting the bug. There is just soooo much info out there

My heart goes out to you Bubba.... you poor poor lad. Its got ya, and once its got ya, its hard to escape. Good luck, and may God have mercy on your frustrated soul.

The older NV249 (in older Grand Cherokees) had a viscous coupler that often wore out and caused problems.

Grand Cherokees with Quadra Drive system have NV247 transfer case that has a progressive coupler. It is a more robust design. Its Mopar part number 05016796AA available from the dealer. I can't remember how much it was for, but it only takes 2 quarts (was only a few dollars).

Other than power steering, transmission and transfer case fluids, all other fluids and parts can used from a reputable aftermarket manufacturer. For diffs I have been using Penrite Pro Gear 80W-140 in both the Jeeps.

As for the coolant, it is recommended to use a HOAT coolant. Valvoline Zerex G05 works great. I have used it in both my Jeeps without any problems at all. You can get this from SuperCheapAuto.

BTW, what year is your Overland?

thanks for all the info guys

It's an 02