QK1109 NV4500 Main Case Roll Pin Kit

QK1109 NV4500 Main Case Roll Pin Kit contains the 3 roll pins used on the overdrive shift rail in the main transmission case. The two mushroom head pins are used for the 5th gear shift fork and the straight pin is used to retain the 5th gear shift lug.

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Dan the Gear Man® Tech Notes:
Includes
Shift Rail Locations
Removal/Installation
Lubricants, Sealants, Threadlockers
NV4500 Tools
Applications

Tech Note 1: Includes
QK1109 includes the 3 pins used on the NV4500 main case 5th gear shift rail. NV4500 transmissions also use 7 identical rolled steel pins in the shift cover to retain the shift forks and lugs. Two each for the 1-2 and 3-4 shift forks, plus one each in the reverse fork, 3-4 shift lug, and 1-2 shift lug all of which are included in available QK1108 Kit.

Tech Note 2: Shift Rail Locations
The New Venture NV4500 transmission has four shift rails, three of those, including the 5th-Reverse Rail are in the top cover. The fourth rail which is for 5th gear, is located partly in the transmission case, and it is controlled indirectly by the reverse shift fork through a connecting arm or lug.

Tech Note 3: Removal/Installation
To replace the NV4500 5th Gear Shift lug roll pin, the transmission should be out of the truck with the top cover and rear housing removed. You will need a long reach punch like QT9300 8" Punch to remove the roll pin from QU10736 5th Gear Lug. I recommend you refer to my fully illustrated, step-by-step, TM1003 NV4500 Shop Manual for service procedures. The two mushroom head pins that retain the 5th gear fork can be accessed when the rear housing is removed from the transmission. To remove, drive the pins upward.

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