Description
Discontinued.
QU10033 Genuine NVG Wide Reverse Idler Gear for 2-Plane 5.61 & 6.34 Reverse Ratios. QU10033 fits all 1992-1996 Dodge and GM NV4500 transmissions. 15 tooth Gear has an approximate length of 2-3/4". Your matching Mainshaft reverse Gear must have 39 teeth.
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Dan the Gear Man® Tech Notes:
Reverse Gear Ratios
Two-Plane Reverse
Common Causes of Failures
NV4500 Tools
Matching Parts
Applications
Tech Note 1: Reverse Gear Ratios
QU10033 is a 15 tooth Reverse Idler Gear that is approximately 2-3/4" long. It can be used in any 1992-1996 New Venture NV4500 5 speed transmission. For 1992-1996 Dodge and 1995-1996 GM transmissions, the reverse gear ratio is 5.61:1. 1992-1994 GM NV4500 models will have a 6.34:1 reverse gear ratio. The difference in the reverse gear ratios is due to the different input gear/countershaft front gear tooth counts.
Tech Note 2: Two-Plane Reverse
1996 and earlier Early NV4500 transmissions utilized a two-plane reverse with either 5.61:1 or 6.34:1 Reverse Gear ratios. With a two-plane reverse, the front half of the wide reverse idler gear receives power from the countershaft and it uses the rear half to transfer power to the large diameter mainshaft reverse gear. The 5.04 ratio Single-plane reverse was introduced for 1997 model year trucks. The power transfer is inline between the countershaft, narrow reverse idler gear, and small diameter mainshaft reverse gear. The reverse idler gears, reverse idler shafts, countershafts, reverse gears, and transmission cases are not interchangeable for the two types of reverse gear systems.
Tech Note 3: Common Causes of Failures
NV4500 Reverse Idler Gear breakage is fairly rare, when it does occur, it is usually caused by pieces of other broken gears (usually 3rd Gear) causing the damage. Damage to the bearing bore inside the gear is a bit more common. Bearing bore wear is almost always caused by operating the transmission with incorrect or contaminated oil. The reverse idler gear is in constant contact with the countershaft so it is rotating any time the input shaft is turning. Crud in dirty oil can quickly damage the small needle rollers that support the idler gear. Installing a manual transmission filter kit can help rid your transmission of magnetic and non-magnetic debris and thereby reducing the chance of premature transmission failure.
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 |
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| 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 | ||||
Tech Note 5: Matching Parts
Matching Parts for QU10033 Reverse Idler Gear:
QU10040 Reverse Idler Shaft
QU10018 Reverse Idler Gear Bearing (Uses 2)
QU10121 Reverse Idler Gear Bearing Spacer
QK1101 Reverse Idler Gear Thrust Washer Set
QU10073 39 Tooth Non-Synchronized Mainshaft Reverse Gear for GM
QU10171 39 Tooth Synchronized Mainshaft Reverse Gear for Dodge
QU10090 Modular Countershaft for 1992-1994 GM, 1992-1993 Dodge
QU10078 One Piece Countershaft for 1992-1996 Dodge, 1995-1996 GM
NV4500E 1996 GM and 1994-1996 Dodge Transmission Case
NV4500GME 1992-1995 GM Transmission Case
QU90020 NV4500 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
TM1003 NV4500 Shop Manual
V1003DVD NV4500 Overhaul Video
Applications:
Chevy and GMC:
New Venture NV4500 5 Speed Manual Transmission: 1992, 1993, 1994, 1995, 1996
Dodge and Ram:
D and W Series with Gas Engines and New Venture NV4500 5 Speed Manual Transmission: 1992, 1993
Ram 2500, Ram 3500 with Manual Transmission: 1994, 1995, 1996
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