QU10097 NV4500 Small Set Screw Type Mainshaft Nut Set

QU10097 NV4500 Small Set Screw Type Mainshaft Nut Set for all New Venture NV4500 GM 4x4 and Dodge NV4500LD 5 speed manual transmissions. Kit includes Nut, Concave Washer, 2 Brass Thread Protectors, and 2 Set Screws. Order Hi-Temp or High Strength Threadlocker from our Shop Chemicals web page. See Tech Note Below. Country of origin: Taiwan.

Note: Set screws will not work on GM 4x4 transmissions with Vibration Dampeners!

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Dan the Gear Man® Tech Notes:
5th Gear Failure
Matching Parts
Lubricants, Sealants, Threadlockers
Tools
Applications

Tech Note 1: 5th Gear Failure
The infamous "NV4500 5th Gear Failure" is almost always wrongly blamed on the nut. Having your nut back off is a consequence of an inadequately supported mainshaft 5th gear on stock and full spline mainshafts. Radial and axial movement of the gear will loosen the nut. No nut design will prevent 5th gear failures although they may delay them. The only way to solve the problem is to redesign the shaft, gear, and nut set which we did with our Torque King® mainshaft sets. See Tech Article 5th Gear Failures and Solutions for more information.

Tech Note 2: Matching Parts:
QU10119 Timken Mainshaft Rear Bearing
QU10118 Timken Mainshaft Rear Bearing Cup
QA10009 Complete Mainshaft Shim Kit
QU10009B Basic Mainshaft Shim Kit
QK1093 Small Genuine NVG Nut Set for Dodge NV4500LD and GM 4x4
QU10069 Large Set Screw Type Mainshaft Nut Set for Dodge NV4500HD
QU10175 Mainshaft Rear Retainer Thrust Plate
QU10181 4x2 Rear Output Lock Nut for GM C-Truck
QU10303 Mainshaft Reverse Gear Thrust Washer
QU10144 Timken High Performance Countershaft Rear Bearing
QU10145 Timken High Performance Countershaft Rear Bearing Cup
QA10008 Complete Countershaft Shim Kit
QU10008B Basic Countershaft Shim Kit
QK1102 Lock Ring Kit Includes 4 Lock/Snap Rings
QK1118 Rear Bearing Retainer/Thrust Plate Bolt Set
QU10037 Countershaft Bearing Plate
QU10304 Countershaft 5th Gear Thrust Washer
QK1110 Thrust Washer Locating Pin Set
NV4500GME Low Ratio Transmission Case for 1992-1995 GM
NV4500E Low Ratio Transmission Case for 1996 GM and 1994-1996 Dodge
NV4500L High Ratio Transmission Case for 1997 and Newer GM and Dodge
QU90020 NV4500 Manual Transmission Oil
TM1003 NV4500 Shop Manual
VSG1003DVD NV4500 Overhaul Video
Chevy & GMC Shop Manuals
Dodge & Ram Shop Manuals

Tech Note 3: Lubricants, Sealants, Threadlockers
Early production NV4500 Transmissions used an anaerobic sealant (QU90003) to seal between the main case and input bearing retainer, top cover, and rear housing. Mid-production units used anaerobic sealant just on the input retainer and RTV for everything else. Later production transmissions used black RTV Sealant (QU90006 or QU90005) for everything. Either type of sealant works fine (except the PTO covers ALWAYS should be sealed with RTV), but I prefer RTV for all components. Regardless of which sealant you use, make sure excess sealant does not block the lube access hole at the top of input retainer pilot that fits into the transmission case. Also, the threaded holes in the main case for the four retainer bolts and 12 PTO bolts are open ended, so you must use new bolts with factory applied threadlocker or apply Threadlocker (S24200) to your existing bolts to prevent oil seepage past the bolt threads. See my TM1003 NV4500 Shop Manual or VSG1003DVD NV4500 Overhaul Video for more information.

Lubricant and Chemical List for NV4500 Transmissions
QU90020 NV4500 Manual Transmission Oil
QU90003 Anaerobic Sealant
QU90006 3.35 oz Ultra Black RTV Sealant
QU90005 0.5 oz Ultra Black RTV Sealant
S24200 6ml Threadlocker
S9978 1 gram Threadlocker
QU90003 Anaerobic Sealant
QU90006 3.35 oz Ultra Black RTV Sealant
QU90005 0.5 oz Ultra Black RTV Sealant
S24200 6ml Medium Strength Blue Threadlocker
S9978 1 gram Medium Strength Blue Threadlocker
S9979 1 gram High Strength Red Threadlocker
S24026 High Temperature Threadlocker for Mainshaft Nut

Tech Note 4: Tools:
Need Torque Specs or Rebuild procedures? Order my 116 page, full color illustrated TM1003 NV4500 Rebuild Manual.

You will need some special tools to correctly service your NV4500 Transmission. The chart below lists our current NV4500 Special Tools for popular models.

Applications:
Chevy and GM:
All with 4x4 New Venture NV4500 Transmission: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Dodge and Ram:
All with New Venture NV4500LD (light duty) Series Transmissions: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005