NV1500/NVG1500

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NV1500/NVG1500

Five-Speed Manual Transmission for TJ Wrangler's

Same transmission with two different model names. NV is New Venture which got changed to New Venture Gear, NVG. Or visa versa.

Used for only two years in Jeep Wranglers, 2003 and 2004, and only in the SE model with the 2.4L I-4 four cylinder engine, this transmission is the "little brother" to the NV3550 five-speed used in six cylinder Wranglers from 2000 to 2004. The main and little known difference between these two very similar transmissions is that the NVG1500 uses a different lubricant than the NV3550. The NVG1500 requires a friction modifier where the NV3550 does not. No explanation exists for this difference. Dealers are often unaware that the friction modifier is required and will sell the non-friction modified Mopar Manual Transmission Lube #4874464 for use in this transmission. Mopar does not sell a lube specifically formulated for the NVG1500. The simple and easy way to acquire the correct lube for the NVG1500 is to buy GM #12377916 Synchromesh Transmission Fluid Friction Modified, Part Synthetic. Any GM dealer can get it but Chevrolet dealers usually have it in stock since it is used in some S-10 pickup truck transmissions (a two-wheel drive version of the NVG1500). It states right on the container that this lube is intended for NVG1500 transmissions. Both drain and fill plugs need a 17MM hex wrench. As used in the SE Wrangler, the transmission does NOT have a vent hose running up to the firewall like the transfer case and the vent is located near but not quite on the top of the transmission. Any water flowing over the top of the transmission will likely enter the transmission through the vent.

Notes

NVG and NV both stand for New Venture Gear

Rustywrangler 21:38, 2 November 2007 (CDT)