QU10049 Genuine NV4500 4th Gear Clutch

QU10049 Genuine NV4500 4th Gear Clutch is a New Old Stock (NOS) genuine New Venture original equipment USA Made 4th Gear Clutch (available while supplies last). These are designed to slip on the splined back of your input shaft. QU10049 fits all 1992-2007 GM and 1992-2005 Dodge NV4500 transmissions regardless of gear ratio or model.

Also See: QU10702 Current Production Replacement 4th Gear Clutch. 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:
QU10049 vs. QU10702
Matching Parts
Lubricants, Sealants, Threadlockers
Matching Synchronizer Parts
NV4500 Tools
Applications

Tech Note 1: QU10049 vs. QU10702
Either QU10049 and QU10702 will replace your worn original 4th Gear Clutch. The difference is country of origin. QU10049 is a NOS USA made NVG component and QU10702 is the current production replacement part. The most common 4th gear clutch problem is wear on the clutch teeth. Clutch teeth wear is usually caused by "grinding the gears". Common culprits of 4th gear shift issues are:
Failed Clutch Pilot Bearing or Bushing in Engine Crankshaft
Excessive mainshaft end-play in transmission
Wrong or contaminated transmission oil
Use of bronze synchro rings instead of OE style lined rings
Wear on the 3-4 Shift Fork
Bellhousing Index Hole off center

Tech Note 2: Matching Parts
Matching Parts for QU10049 4th Gear Clutch:
QU10702 AM 4th Gear Clutch
QU10732 3-4 Synchro Assembly
QU10021 or QU10206 Sliding Clutch Ring or Sleeve
QU10004 Synchro Ring (use 1 each for 3rd and 4th)
QU10076 or QU10199 1-1/4 x 10 Spline Input Shaft for Dodge NV4500HD
QU10261 1-/8" x 10 Spline Input Shaft for Dodge NV4500HD
QU10046 1-1/8" x 10 Spline Input Shaft for Dodge NV4500LD
QU10054 1" x 19 Spline Input Shaft for 1992-1993 Dodge 
QU10043 1-1/8" x 10 Spline 20 Tooth Input Shaft for 1992-1994 GM
QU10059 or QU10077 1-1/8" x 10 Spline Input Shaft for 1995-2007 GM
QU10731 1-1/4" x 10 Spline Input Shaft for 1996-2005 GM C3500HD Truck
Chevy & GMC Shop Manuals
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 V1003DVD 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: Matching Synchronizer Parts
Matching NV4500 3-4 Synchronizer Parts for all Applications: 

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.

Applications

Chevy and GMC:
C1500, K1500, C2500, K2500, C3500, C3500HD, K3500 with NV4500 5 Speed: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
C2500, K2500, C3500, K3500 Standard and HD Pickup based models with NV4500 5 Speed: 2000, 2001, 2002, 2003, 2004, 2005, 2006
C3500HD 15,000 Lb. GCVW Cab and Chassis with NV4500 5 Speed: 2000, 2001, 2002
C2500, K2500 Silverado Classic and Sierra Classic with NV4500 5 Speed: 2007

Dodge and Ram:
D250, W250, D350, W350 with Cummins Diesel AND our NV4500 Transmission Retrofit Kit: 1989, 1990, 1991, 1992, 1993
Ramcharger, D150, W150 with NV4500 5 Speed: 1992, 1993
D250, W250, D350, W350 with Gas Engine and NV4500 5 Speed: 1992, 1993
Ram 2500, Ram 3500 with V10 and NV4500HD 5 Speed: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Ram 2500, Ram 3500 with Cummins Diesel and NV4500HD 5 Speed: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Ram 2500, Ram 3500 with gas V8 and NV4500LD 5 Speed: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005