QU10261 1-3/8" Input Shaft Kit for 1994-2004 Dodge NV4500HD is built for higher horsepower and/or dual-disc clutch applications. Kit includes beefy 22 tooth x 1-3/8" x 10 spline Input Shaft, Large Bore Input Bearing Retainer, Input Bearing Set, and Input Seal. Imported.
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: Specs
Common Input Shaft Failures NV4500HD Input Shaft Bearings Matching Parts Popular Matching Countershafts Popular Matching Mainshafts Matching Synchronizer Parts NV4500 Tools Applications
Tech Note 1: SpecsQU10261 includes a 22 tooth 1-3/8" x 10 spline input shaft. The matching Countershaft Gear must have 38 teeth. The tip for the pilot bearing is 3/4". Overall length is about 10". Approximate stick-out length from front face of transmission case to tip is 7-11/16". To use this kit, you will also need to a clutch with 1-3/8" 10 spline hub. Combined Input Shaft and Mainshaft End-Play should be set at 0.002"-0.006".
Tech Note 2: Common Input Shaft FailuresThe majority of NV4500 Input shaft failures are caused by one or more of the following:#1. Failed clutch pilot bearing or bushing which chews up the input tip and can cause gear tooth breakage from misalignment between the engine and transmission. #2. Running the transmission low on oil or with the wrong oil. #3. Excessive horsepower which can cause either tooth breakage or the shaft to twist off.#4. Bellhousing Index Hole off center and/or Bellhousing to block alignment pin(s) missing. A Cummins diesel bellhousing to transmission index hole that is more than 0.015" off center from the crankshaft centerline should be replaced. For V10 engines, maximum allowable runout is 0.010" which can be corrected by the use of offset dowels.
Tech Note 3: NV4500HDThe New Venture NV4500HD transmission was factory rated at 460 LB.-FT. of input torque. Except for the infamous fifth gear issue, NV4500HD performance and longevity is excellent with stock engines. The suitability of the NV4500HD for use behind modified, higher performance Cummins Diesel engines is debatable. Over a 15 year period, I worked on hundreds of NV4500HD transmissions out of trucks with everything from stock to highly modified competition Cummins Diesels. From what I saw, the failure rate of NV4500 transmissions increases dramatically when input torque exceeds 600 LB.-FT.. Yes, I know some guys run over engines with over 1,000 pounds of torque with no reported problems. I also know you can use bigger input shafts and cryogenically treat your gears which may help a little. The bottom line is this: If you increase your engine's power AND you use it, chances are you will experience a catastrophic transmission failure that would not have occurred with a stock or near stock engine.
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 4: Input Shaft BearingsThe New Venture NV4500 Input Shaft is designed to use three bearings. The input shaft is supported by a pressed-on Timken® high-performance Tapered Bearing Set. The back of the input shaft is bored for straight, caged roller bearing. The back face of the input shaft is ground flat for contacting the mainshaft to input thrust bearing. Another design feature of NV4500 input shafts is the 4th gear clutch ring is not an integral part of the input shaft, instead it is a slip fit to splines machined behind the input gear teeth. Incidentally, with the NV4500, 4th "gear" is simply a direct connection between the input shaft and output shaft with no power transfer through the countershaft.
Tech Note 5: Matching PartsMatching Parts for QU10261 Input Shaft Kit:SBC 1947-OK South Bend Clutch Kit Upgrade, 2000.5-2005.5QU10049 or QU10702 4th Gear ClutchQU11238 Input Bearing RetainerQU10124 Timken® High Performance Input BearingQU10125 Timken® High Performance Input Bearing CupQU10133 NV4500 Input Pocket BearingQU10134 NV4500 Input Thrust BearingQU10126 Input SealQU10009 Mainshaft Shim KitQU10009B Basic Mainshaft Shim KitQK1010 Complete Small Parts KitQU10221 Basic Small Parts KitQU10001 Premium Bearing Kit for 1994-1996QU10005 Premium Bearing Kit for 1997-2004QU10558 Stock Type Needle Pilot Bearing for V10 and Cummins DieselQU51010 Heavy-Duty Ball Pilot Bearing for Cummins DieselQU10076 Rebuilder Spec 1-1/4" x 10 Spline NV4500HD Input ShaftQU10199 Replacement 1-1/4" x 10 Spline NV4500HD Input ShaftQU10541 Transmission Mount Support Plate for 4x4 Dodge Ram 5 SpeedQK1041 5 Speed Transmission Mount Kit for 1994-2002 Dodge Ram 2500, Ram 3500 4x4QU90020 NV4500 Manual Transmission OilTM1003 NV4500 Shop ManualVSG1003DVD NV4500 Overhaul Video
Tech Note 6: Popular Matching CountershaftsMatching Countershaft Part Numbers for QU10261 Input Gear Kit are:
Application
Countershaft
Type
1st Gear Ratio
Countersahft Gear
1994 Dodge
QU10090
ModularDesign
5.61
QU10154
1994Optional for Dodge
QU10078
One Piece
5.61
Part ofCountershaft
1995-1996 Dodge
QU10078
One Piece
5.61
Part ofCountershaft
1997-2005 Dodge
QU10192orQU10707
One Piece
5.61
Part ofCountershaft
Tech Note 7: Popular Matching MainshaftsMatching Popular Mainshaft Part Numbers for QU10261 Input Gear Kit are:
Application
Mainshaft
Engine
Output Spline
1992-1993 Dodge 4x41994-2005 Dodge NV4500LDConversion
QU10214
Gas V8
23
1994-2004 Dodge 4x4 NV4500HD
QA1045orQU10011
Diesel or V10
29
1995-2004 Dodge 4x2 NV4500HD
QU10013
Diesel or V10
31
1992-2007 GM 4x4Conversion
QU10098
All
32
1997-2007 GM C-Series 4x2Conversion
QU10719
All
35
Tech Note 8: Matching Synchronizer PartsMatching NV4500 Synchronizer Parts for QU10261 Input Gear Kit are:
4th Gear Clutch
SynchronizerAssembly
SynchronizerHub
SynchronizerSlider
StrutKit
SynchronizerRing
QU10049 or QU10702
QU10732
QU10020orQU10122
QU10021
QK1099
QU10004
Tech Note 9: NV4500 ToolsNeed 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
Applications
Dodge and Ram:Ram 2500, Ram 3500 with V10 engine: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003Ram 2500, Ram 3500 with Cummins Diesel engine: 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
