Description
QU10069 Dodge NV4500HD Large Set Screw Type Mainshaft Nut Set is an aftermarket part for all Dodge 29 spline 4x4 and Dodge 31 spline 4x2 New Venture NV4500HD 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.
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Dan the Gear Man® Tech Notes:
5th Gear Failures
Matching Parts
Lubricants, Sealants, Threadlockers
NV4500 Tools
Applications
Tech Note 1: 5th Gear Failures
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
QU10175 Mainshaft Rear Retainer Thrust Plate
QU10097 Small Set Screw Type Mainshaft Nut Set for Dodge NV4500LD and GM 4x4
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
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 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: NV4500 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.
TOOLS for SPECIFIC NV4500 MODELS |
||||||
| Component | 23 Spline Dodge 4x4 NV4500LD |
29 Spline Dodge 4x4 NV4500HD |
30 Spline Dodge 4x2 NV4500LD |
31 Spline Dodge 4x2 NV4500HD |
32 Spline GM 4x4 |
35 Spline GM 4x2 |
| Mainshaft Nut | QT2002 | QT2001 QT2036 |
QT2002 | QT2001 QT2036 |
QT2002 QT2028 |
1-1/2" Hex Socket |
| Mainshaft Holding | NLA | QT2000 | NLA | QT2011 | N/A | N/A |
| 5th Gear Nut Torx® Cross Bolt |
N/A | QT9205 | N/A | QT9205 | N/A | N/A |
| Output Seal Installer | N/A | QT1801 | N/A | QT2058 CALL |
Not Used | Not Used |
| Tailshaft Bushing Remover and Installer | Not Used | Not Used | Not Used | QT2044 | Not Used | Not Used |
TOOLS For ALL NV4500 MODELS |
||||||
| Countershaft Front Bearing Cup Installer |
QT1802 | Use with QT1101 or QT1119 Driver Handle. Also can use flat side to install Dodge 4x4 Rear Output Seal | ||||
| Countershaft Front Bearing Installer | QT2004 | Can also use to press 3-4 Synchro Hub on original equipment mainshafts | ||||
| Input Bearing & Countershaft Rear Bearing Installer | QT2005 | Can also use to install Input Seal | ||||
| Input Bearing Cup Installer | QT1801 | Use with QT1100, QT1101, QT1116, or QT1119 Driver Handle. | ||||
| Countershaft Support | QT2006 | Use to support front of countersahft when installing countershaft rear bearing | ||||
| 1-2 Synchronizer Support | QT2008 | Use to support 1-2 synchronizer hub during synchronizer assembly | ||||
| 10mm 1/2" Drive 12 Point Socket | QT1020 | USA Made Impact Socket for Factory Tailshaft Housing Bolts | ||||
| Long Shank Punch for Shift Lug | QT9300 | 3/16" x 8" Shank for 5th Gear Shift Lug Roll Pin | ||||
Applications
Dodge and Ram:
All with New Venture NV4500HD Series Transmissions (NV4500HD is used with Diesel and V10 only): 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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