QK1129 1992-early 1995 NV4500 Countershaft Drive Key Kit

QK1129 1992-early 1995 NV4500 Countershaft Drive Key Kit includes the two special Woodruff Keys used on early multi-piece countershafts. Fits all 1992-1994 GM NV4500 models with the 6.34-1 1st gear ratio and Dodge 1992-1994 with 5.61:1 1st gear ratio. Some early production 1995 GM and Dodge transmissions with the 5.61-1 ratio also came with the multi-piece countershaft.

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Dan the Gear Man® Tech Notes:
Gear Ratios
Matching Parts
Lubricants, Sealants, Threadlockers
NV4500 Tools
Applications

Tech Note 1: Gear Ratios
The NV4500 transmission was initially designed to allow for close, medium, and wide ratio models, plus there were plans for a NV4600 6 speed with a double overdrive. Only the wide and medium ratio 5 speed versions saw production. GM used the wide ratio version with 6.34:1 1st and reverse gear ratios in 1992 to 1994 trucks. Dodge used the medium ratio version with 5.61:1 1st and reverse gears from 1992-1996 as did GM for 1995-1996. QU10090 Countershaft is made so the two front gears can be changed to provide different gear ratios. The shaft is keyed slotted for thick drive keys (QK1129) for each gear, plus the gears themselves are designed to be a very tight interference (press) fit to the countershaft.

Tech Note 2: Matching Parts
Matching Parts for QK1129 Countershaft Key Kit:
QU10090 Modular Countershaft  for 1992-1994
QU10140 Sealing Cap, Main Case Countershaft Front Bearing Bore
QK1102 Lock Ring Kit
QK1110 Thrust Washer Locating Pin Set
QU10141 Countershaft 5th Gear Bearing
QU10142 Timken High Performance Countershaft Front Bearing
QU10143 Timken High Performance Countershaft Front Bearing Cup
QU10144 Timken High Performance Countershaft Rear Bearing
QU10145 Timken High Performance Countershaft Rear Bearing Cup
QA10008 Countershaft Shim Kit
QU10008B Basic Countershaft Shim Kit
QK1010 Complete Small Parts Kit
QU10221 Basic Small Parts Kit
QU10202 5th Gear Clutch
QU10304 Countershaft 5th Gear Thrust washer
QU10033 Wide Reverse Idler Gear
QT1802 Countershaft Front Bearing Cup Installer
QT2004 Countershaft Front Bearing Installer
QT2005 Counter Shaft Rear Bearing Installer
QT2006 Countershaft Support
For Gearing, see Tech Notes 1 and 2

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 VSG1003DVD NV4500 Overhaul Video for more information.

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.

Applications

Chevy and GMC:
1992, 1993, 1994, 1995 and early 1995 with New Venture NV4500 5 Speed Manual Transmission

Dodge and Ram:
1992, 1993 D and W Series with Gas Engines and New Venture NV4500 5 Speed Manual Transmission
1994-and early 1995 Ram 2500, Ram 3500 with Manual Transmission