QU10055 NV4500 Mainshaft 1/2 and NV5600 Countershaft 3/4 Bearing

QU10055 NV4500 Mainshaft 1/2 and NV5600 Countershaft 3/4 Bearing fits either 1st or 2nd gear on all 1992-2007 New Venture NV4500 5 Speed Manual Transmissions in Chevy, Dodge, GMC, and conversion applications. QU10055 is also used in 1999-2005 Dodge New Venture NV5600 6 Speed Manual Transmissions for the countershaft 3rd or 4th gears. Made in Germany.

May be either single split or dual split, plastic or metal caged. All styles are interchangeable.

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:
Product Note
Before Assembly
Matching Parts for NV4500
Matching Parts for NV5600
NV4500 Tools
Lubricants, Sealants, Threadlockers
Applications

Tech Note 1: Product Note
Two QU10055 Bearings are used per transmission.

Tech Note 2: Before Assembly
Soak QU10055 Bearing in QU90020 NV4500 GL-4 75w85w Manual Transmission Oil (NV4500) or Pennzoil Synchromesh (NV5600) or other approved lubricants before assembly.

Tech Note 3: Matching Parts for NV4500
Matching parts for QU10055 Bearing in NV4500 5 Speed Transmissions:
QK1104 NV4500 Cast Iron Thrust Washer Kit for 3rd Gear, 5th Gear and Reverse Gear
QU10135 NV4500 Mainshaft 3rd Gear Bearing
QU10141 NV4500 Countershaft 5th Gear Bearing
QU10058 NV4500 Mainshaft Reverse Gear Bearing
QU10018 1992-1996 NV4500 Reverse Idler Gear Bearing (uses 2)
QU10019/QU10170 1997-2007 NV4500, Double Row Reverse Idler Gear Bearing
QU10134 NV4500 Input Thrust Bearing
QU10133 NV4500 Input Pocket Bearing
QU50155 GM 4x2 C-Truck NV4500 Tailshaft Support Needle Bearing
TKA1182 1992-1996 NV4500 Premium 9 Piece NV4500 Needle Bearing Kit
TKA1180 1997-2007 NV4500 Premium 8 Piece NV4500 Needle Bearing Kit
NV4500GME Bare NV4500 Transmission Case for 1992-1995 GM
NV4500L Bare NV4500 Transmission Case for 1997-2007
TM1003 116 Page NV4500 Shop Manual with over 400 color photographs
Gears and Shafts: See our NV4500 Parts Web Page

Tech Note 4: Matching Parts for NV5600
Matching parts for QU10055 Bearing in Dodge NV5600 6 Speed Transmissions:
QU10421 Hardened Inner Bearing Race for 4th Gear
TK12006 Premium Complete NV5600 Bearing and Seal Kit
TK12007 Premium NV5600 Taper Bearing and Seal Kit
QU12055 NV5600 Counter Shaft
QU12034 NV5600 Countershaft 3rd Gear
QU12052 NV5600 Countershaft 4th Gear
QU10417 1st Design Steel Countershaft 3rd Gear Thrust Washer
QU10424 2nd Design Plastic Countershaft 3rd Gear Thrust Washer

Tech Note 5: 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.

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 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

Applications

Chevy and GMC:
New Venture NV4500 5 Speed Manual Transmissions: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Dodge:
New Venture NV4500LD and NV4500HD 5 Speed Manual Transmissions: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Ram 2500, Ram 3500 NV5600 6 Speed Manual Transmission: 1999, 2000, 2001, 2002, 2003, 2004, 2005