In need of manual transmission information: 2005 Rubicon

Aug 03, 2006 5 Replies
C

Greetings,


Once again, i am in need of important information regarding the NSG-370 - 6 speed manual transmission on my 2005 Jeep Rubicon (4.0 L).



Specifically: the size of the hex fill bolt/plug (mm) on the case. The drain bolt/plug is 17 mm: the same as my 2001 TJ with the NV 3550 - 5 speed (both bolts on that transmission were 17 mm). The NSG-370's hex fill bolt/plug is slightly smaller than the 17 mm drain bolt/plug...i am suspecting 16 mm, but rather than waste time & gas, Et. c., finding one, purchasing, & attempting a fit, only to have to return if the size is incorrect, i thought it best to simply ask here. Much good information was provided to me (especially from FrankW), during my earlier post & resulting thread regarding specifications for this new 6 speed manual transmission that replaced the NV-3550.



Thanks very much as always,



Campbell Freeman South Carolina


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C

If it is indeed 16mm, then you can use a 5/8" wrench. They are only .004" different, and the 5/8 is smaller, so there wont be a slippage problem. Might save you a trip and a wrench purchase.

Chris

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C

Thanks "c",

The only problem i see with that is this is not a standard bolt. It is a recessed threaded metric plug ~ 5/8" 'deep'...a hexagonal "hole" into which the 1/2" drive socket tool you use has an extended hex shaft the size of the plug. that tool fits into the plug and you either loosen or tighten the plug.

I hope i described that properly. I am not a mechanic. I am a drummer.

ccf

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S

Use a bolt of the correct size head & double nut the other end & turn with a wrench

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C

FYI:

NSG-370 fill plug: 14 mm (caliper measured); drain plug: 17mm (fit with existing hex socket).

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