2002 TJ Gearbox

Should be a New Venture 3550 like mine. Does it sound like a diesel when in neutral with the motor running? If so, it's the NV3550.

/Peter

It gives the impression that someone has left a pound of ball bearings in the transmission when idling with the clutch engaged. The only reason that I thought it was possibly an AX15 is that the Jeep dealer ran my VIN Number and said that the gearbox came up Aisin where as the NV3550 is New Venture or are they the same company.? The dealer could not be anymore help as to the model which is a little worrying.

Cheers Nick

New Venture Gear Inc. Company Profile

A so>

My 99 makes noise when sitting in neutral with my foot off of the clutch.

Eric

Oh, I thought you were talking about the noise in neutral (which I remember a flood of complaints about when DC switched to the NV in '00). Ya, if he has an AX-15, it's a '99 or lower for sure (and a 4.0L I would assume). If this is a 4cyl, I think they continued with the Asian (AX-5, not AX-15) through the '01 models (changing in '02 I think?).

Dave

Thanks for the comments, I have emailed DaimlerChrysler in the states on the link posted earlier with my VIN details to see whay they say, I am not sure why it would be a 99 car(but anything is possible) as the Jeep sticker inside the door gives a manufactured date of 2002 I can't remember the month and its chucking it down outside so I am not going to venture outside to look (not the true Jeep spirit I know :-) ). I will wait and see what Jeep America come back with as it is my local dealer who's given me the information about it being an Aisin box.

Cheers Nick

Where was your Jeep's assembly location? I don't know if TJ's for the UK market are assembled in North America or not. If not, it's possible you have the Aisin, tho that's just an assumption on my part.

DaimlerChrysler have come back with the full listing and it is definetly an NV3550 in the car, thanks for all the responses. So I am off to buy some Redline MTL to stick in it.

Nick

Mine was built in Toledo.

Dave Milne, Scotland '91 Grand Wagoneer, '99 TJ

Hold on there buckaroo, before you buy that Redline, know that it does not meet the spec for the New Venture tranny. Get Pennzoil "Syncromesh" Manual Transmission Fluid, or go to the dealer and get reamed. The NV3550 does not take standard gear oil.

Nick, as much as I like and recommend Redline's MTL and MT-90 for the AX-15 used in earlier TJs, you should really use Pennzoil's or GM's Synchromesh tranny fluid in your NV 3550. I have four quarts of Redline MT-90 that just arrived from Summit Racing for my AX-15 so I do like the stuff but Synchromesh is more appropriate for your NV3550. :)

Jerry

In fact my owner's manual for my 2001 TJ states for the 4.0L models "use only Mopar Manual Transmission Lubricant (part# 4874464). This is the only fluid recommended for this transmission."