QU10146 NV4500 Tailshaft Housing Dowel Pin

QU10146 NV4500 Tailshaft Housing Dowel Pin These hollow alignment pins center the tailshaft housing to the main housing on all NV4500 transmissions. New Old Stock (NOS) or new takeout original equipment replacement for lost or damaged part. Sold individually, Order 2 per truck.

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Dan the Gear Man® Tech Notes:
Pin Function
Replace Bolts
Matching Parts
Lubricants, Sealants, Threadlockers
NV4500 Tools
Applications

Tech Note 1: Pin Function
The NV4500 rear or r tailshaft housing is indexed to the main case with two QU10146 hollow Alignment Pins or Dowells. These pins ensure the transmission rear output shaft is in alignment with the 4x4 transfer case or 4x2 output yoke.

Tech Note 2: Replace Bolts
New Venture used eight QU10106 hardened, 12 point bolts to attach the transmission rear output or extension housing to the main case due to the limited space available for a socket and the relatively high torque (50 lb-ft) applied to the bolts. The 10mm, 12 point head is subject to wear from repeated use and corrosion, either of which can reduce the amount of torque that you can apply before the head rounds off. I strongly recommend replacing your bolts any time they are removed. Two of these bolts are inserted through the QU10146 alignment pins.

Tech Note 3: Matching Parts
QU10106 Tailshaft Housing Bolt
QU10057U Used Dodge 4x4 Tailhousing 1994-2005
NV4500GME Transmission Main Case for 1992-1995 GM
NV4500E Transmission Main Case for 1992-1996 Dodge and 1996 GM
NV4500L Transmission Main Case for 1997-2007 GM
QU10716 GM 4x4 Rear Housing
QU10726 GM C-Truck 4x2 Rear Housing for Push-In Speedometer Pickup
QU10233 GM C-Truck 4x2 Rear Housing for Screw-In Speedometer Pickup
QU10217 GM Cast Iron Long 4x2 Housing with Park Brake Mounting Pad
QU10024 1994-1997 Dodge NV4500HD 4x2 rear Housing
QU10083 1998-2004 Dodge NV4500HD 4x2 Rear Housing

Tech Note 4: 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

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:
Ramcharger, D150, W150, D250, W250, D350, W350 with 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: 1998, 1999, 2000, 2001, 2002, 2003, 2004
Ram 2500, Ram 3500 with gas V8 and NV4500LD 5 Speed: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005