QK1001 Dodge NV4500HD 4x4 Mainshaft, 5th Gear, and Nut Kit fits all 1994-2004 Dodge 4x4 New Venture NV4500HD 5 speed manual transmissions in Ram trucks with either the Cummins Diesel or gas V10 engines. Replace that old, worn out mainshaft and 5th gear with a brand new, heavy-duty 29 spline 4x4 mainshaft, 22 tooth mainshaft 5th gear, mainshaft nut set, and rear output seal. Kit also includes medium strength and high-temp threadlockers, plus RTV sealant.
Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!
Dan the Gear Man® Tech Notes: Kit Includes Not a Press Fit Torque Specs Best Option Factory Torque Rating Lubricants, Sealants, Threadlockers Other Matching Parts Matching Bearing Kits Special Tools Matching Small Parts and Small Parts Kits
Matching Mainshaft Gear Part Numbers Matching Synchronizer Parts
Rear Output Applications Applications
Tech Note 1: Kit Includes QA1045 Mainshaft Set (includes mainshaft, thrust washers, and nut set)QU10067 Mainshaft 5th GearQU10123 4x4 Rear Output SealQU90006 3.35 oz Ultra Black RTV SealantS24200 6ml Medium Strength Blue ThreadlockerS24026 High Temperature Threadlocker for Mainshaft Nut
Tech Note 2: Not a Press FitThere is currently no available NV4500 mainshaft from any supplier that will have a press fit for the 3-4 synchro, mainshaft 5th gear, or the rear output bearing. They are specifically designed and machined this way to speed assembly. The only shafts that had a press fit were the original equipment New Venture shafts and our Torque King shafts, both of which are long out of production and no longer available.
Tech Note 3: Torque Specs The mainshaft nut torque is 270-280 Lb-ft. Secure the transmission to a sturdy work bench. Lock the transmission into 2nd and 4th gears. Use optional QT2001 or QT2036 Nut Wrenches to torque the nut to specification.
Tech Note 4: Best Option For more information about NV4500 5th gear failures, see:5th Gear Failures and SolutionsNV4500 Cast Iron Tailshaft Housings
We no longer make the Torque King® Mainshaft and Retrofit Kits as described in the 5th Gear Failures and Solutions, article which leaves full spline shafts the only choice currently available for Dodge NV4500HD transmissions. While full spline shafts do not actually cure the 5th gear issue, they do greatly reduce the chances of the nut backing off. QA1045 Kit is today's best option for preventing a 5th gear nut failure.
Tech Note 5: Factory Torque Rating Ever since the Cummins Diesel was introduced in the 1989 Dodge Ram, people have been modifying the engines to crank out more horsepower. Unfortunately, all the manual transmissions used behind the Cummins Diesel (Getrag G360 (1989-1993), NV4500HD (1994-2004), NV5600 (1999-2005), and G56 (2005 to current) are only rated for around stock engine torque. When you increase your power output, you also increase the chance of having a major transmission failure. While some reasonably effective steps can be taken to increase the torque ratings of specific components, there is no practical way I know of to really make your Ram manual transmission "bullet proof" for big torque increases.
There are claims that cryogenically treating NV4500 gears will increase gear strength as much as 30%. Unfortunately, there does not seem to be any peer-reviewed documentary evidence to support those claims. Cryogenically treating gears is primarily a cold-hardening process that changes the molecular structure of steel to decrease wear while retaining or increasing hardness. If properly done, it is probable the cryogenic treatment process does slightly increase the impact and fatigue resistance of NV4500 gears, but not enough to significantly increase the ability of an NV4500 transmission to reliably handle more than 600 Lb.-Ft. of input torque especially considering the maximum factory torque rating of the NV4500HD transmission is only 460 Lb.-Ft.
Tech Note 6: 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 TransmissionsQU90020 NV4500 Manual Transmission Oil QU90003 Anaerobic SealantQU90006 3.35 oz Ultra Black RTV SealantQU90005 0.5 oz Ultra Black RTV SealantS24200 6ml Medium Strength Blue ThreadlockerS9978 1 gram Medium Strength Blue ThreadlockerS9979 1 gram High Strength Red ThreadlockerS24026 High Temperature Threadlocker for Mainshaft Nut
Tech Note 7: Other Matching Parts QA1045 QA1045 Mainshaft KitQU10011 Original Fully Splined 4x4 MainshaftQU10076 Rebuilder Spec 1-1/4" x 10 Spline Input ShaftQU10199 Replacement 1-1/4" x 10 Spline Input ShaftQU10261 Upgrade 1-3/8'x 10 Spline Input Shaft KitQU90020 NV4500 Manual Transmission OilTM1003 NV4500 Shop ManualVSG1003DVD NV4500 Overhaul VideoQT2000 29 Spline Shaft WrenchQT2001 Mainshaft Nut Wrench, 1/2" DriveQT2036 Mainshaft Nut Wrench, 3/4" Drive
Tech Note 8: Matching Bearing Kits Mainshaft Bearings in matching Bearing Kits for QK1001 Mainshaft and Gear Kit are:
Bearing
IndividualBearing
1994-2004 TK10237 Taper Bearing Kit
1994-2004QK1136Primary Bearing Kit
1994-1996 QU10001Master Bearing Kit
1997-2004 QU10005Master Bearing Kit
InputPocketTo Main
QU10133
NO
YES
YES
YES
Input to Main Thrust
QU10134
NO
YES
YES
YES
3rd
QU10135
NO
NO
YES
YES
2nd
QU10055
NO
NO
YES
YES
1st
QU10055
NO
NO
YES
YES
Reverse
QU10058
NO
NO
YES
YES
MainshaftRear Cup
QU10118
YES
YES
YES
YES
MainshaftRearBearing
QU10119
YES
YES
YES
YES
Tech Note 9: Special 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 SplineDodge 4x4NV4500LD
29 SplineDodge 4x4NV4500HD
30 SplineDodge 4x2NV4500LD
31 SplineDodge 4x2NV4500HD
32 SplineGM 4x4
35 SplineGM 4x2
Mainshaft Nut
QT2002
QT2001QT2036
QT2002
QT2001QT2036
QT2002QT2028
1-1/2" HexSocket
Mainshaft Holding
NLA
QT2000
NLA
QT2011
N/A
N/A
5th Gear NutTorx® Cross Bolt
N/A
QT9205
N/A
QT9205
N/A
N/A
Output Seal Installer
N/A
QT1801
N/A
QT2058CALL
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
CountershaftFront 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
Tech Note 10: Matching Small Parts and Small Part Kits
Bearing
IndividualPart Number
SubKit
QU10221Basic Small Parts Kit
TK1179Main Case Small Parts Kit
QK1010CompleteSmallParts Kit
3rd Gear Teflon Ring
QU10313
QK1098
No
YES
YES
3rd Gear Snap Ring
QU10301
QK1102
YES
YES
YES
3rd Gear Thrust Washer
QU10302
NO
NO
YES
YES
1-2 Synchro Snap Rings
QU10305
QK1103
YES
YES
YES
Reverse Clutch Snap Ring
QU10300
QK1102
YES
YES
YES
Reverse Gear Thrust Washer
QU10303
NO
NO
YES
YES
Basic Mainshaft Shim Kit
QU10009B
NO
YES
NO
YES
Complete Mainshaft Shim Kit
QA10009
NO
NO
NO
YES
Tech Note 11: Matching Mainshaft Gear Part Numbers
DodgeNV4500HDApplication
Mainshaft 3rd
Mainshaft 2nd
Mainshaft 1st
Mainshaft Reverse
Mainshaft 5th
1994-1996
QU10201
QU10035
QU10075
QU10171
QU10067
1997-2004
QU10201
QU10035
QU10075
QU10022orQU10085
QU10067
Tech Note 12: Matching Synchronizer Parts
Gear
SynchronizerAssembly
SynchronizerHub
SynchronizerSlider
StrutKit
SynchronizerClutch
1st-2nd
QK1058
QU10038
QU10081
QK1100
Part of Gears
3rd-4th
QU10732
QU10122
QU10021or QU10206
QK1099
4th QU10049or QU10702
Reverse1994-1996
NotAvailable
Part of Gear
QU10039
QK1099
QU10710or QU10204
Reverse1997-2004
QK1056
Part of Gear
QU10039
QK1099
QU10710or QU10204
Tech Note 13: Rear Output Applications NV4500 Transmissions are frequently used for conversion applications. The Table below lists the most popular rear output applications and their associated parts.
Component
23 SplineDodge 4x4
29 SplineDodge 4x4
31 SplineDodge 4x2w/Speedo
31 SplineDodge 4x2No Speedo
32 SplineGM 4x4
35 SplineGM 4x2Short*
35 SplineGM 4x2Long*
Mainshaft
QU10214
QA1045 orQU10011
QU10013
QU10013
QU10098
QU10719
QU10212
Rear Housing
QU10057
QU10057
QU10024
QU10083
QU10716
QU10233
QU10217
5th Gear**
QU10007QU10086
QU10067
QU10067
QU10067
QU10007QU10086
QU10007QU10086
QU10007QU10086
5th GearNut Set
QK1093QU10097
QU10069
QU10069
QU10069
QK1093QU10097
See YokeNut
See YokeNut
SpeedometerDrive
Not Used
Not Used
QU10027QK1143
Not Used
Not Used
QU10177
QU10177
SpeedometerSnap Ring
Not Used
Not Used
QU10330QK1143
Not Used
Not Used
Not Used
Not Used
SpeedometerSender
Not Used
Not Used
ContactDealer
Not Used
Not Used
QU10228
QU10228
SpeedometerO-Ring
Not Used
Not Used
QU10678
Not Used
Not Used
incl. withQU10228
incl. withQU10228
Spacer
Not Used
Not Used
Not Used
Not Used
QU10172QU10173
Not Used
QU10738
Bushing orBearing
Not Used
Not Used
QU10025
QU10025
Not Used
QU50155
QU50155
BearingSnap Ring
Not Used
Not Used
Not Used
Not Used
Not Used
QU10319
QU10319
Output Seal
QU10123
QU10123
QU10023
QU10023
Not Used
QU10720
QU50204
Gasket
TK10519
TK10519
Not Used
Not Used
TK30052
Not Used
Not Used
Yoke
Not Used
Not Used
QU40700QU40354QU40495
QU40700QU40354QU40495
Not Used
QU10184QU10727QU30094
QU40902
Yoke Spline Seal
Not Used
Not Used
QU10026
QU10026
Not Used
QU30009
QU30009
Yoke Washer
Not Used
Not Used
Not Used
Not Used
Not Used
QU30095
QU30095
Yoke Nut
See 5thGear Nut
See 5thgear Nut
See 5thGear Nut
See 5thGear Nut
See 5thGear Nut
QU10181
QU10181
*Electronic, Screw-In Speedometer Sensor**22 Tooth Mainshaft 5th Gears listed for 1992-2005 Dodge and 1995-2007 GM with 5.61:1 1st gear ratio. 1992-1994 GM with 6.34:1 first gear ratio use 19 Tooth QU10728 Gear. QU10728 is NOT compatible with Dodge 29 and 31 Spline Output Shafts
ApplicationsDodge and Ram: Ram 2500, Ram 3500 with 4x4 New Venture NV4500HD Transmission: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Phone:
406-384-0270
Email:
sales@torqueking.com
Location:
7727 S Leopard Ave,
Billings
Montana
59106
