QK1099, QK1163, QK1162 NV4500 3-4, 5th, and Reverse Synchro Strut Kit


QK1099 NV4500 3-4, 5th, and Reverse Gear Synchro Strut Kit has the 3 QU10309 coil springs and 3 QU10308 steel struts used with each 3-4, 5th, and reverse synchronizer assembly. Included in QK1010 Small Parts Kit. Use one Kit per Synchronizer Assembly.

6 Piece Synchro Strut Kit
* Kits made up of multiple items may not show an inventory in-stock status but are almost always in stock!

tech note

All New Venture NV4500 5 speed manual transmissions use 1 QK1099 Kit for the 3-4 synchro assembly and three for the 5th gear synchro assembly. All Dodge and 1999-2007 GM NV4500 transmissions also use a third QK1099 Kit for the synchronized reverse gear. 1992-1998 GM NV4500 transmissions do not have a synchronized reverse gear from the factory and do not use QK1099 Kits for reverse gear.

tech note

Matching Parts for QK1099 Spring and Strut Kit:
QU10308 Synchro Strut
QU10309 Spring and Strut Kit
QU10206 3-4 Synchro Sleeve
QU10122 3-4 Synchro Hub
QU10039 Synchro Sleeve for 5th Gear and Reverse Gear
QU10171 39 Tooth Synchronized Reverse Gear for 1992-1996 Dodge Ram
QU10085 35 Tooth Reverse Gear for 1997-2005 Ram and 1999-2007 GM
QU10729 Countershaft 5th Gear for 1992-1994 GM
QU10203 Countershaft 5th Gear for 1992-2005 Ram and 1995-2007 GM

tech note

Need Torque Specs or Rebuild procedures? Order my 116 page, full color illustrated 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.


Component 23 Spline
Dodge 4x4
29 Spline
Dodge 4x4
30 Spline
Dodge 4x2
31 Spline
Dodge 4x2
32 Spline
GM 4x4
35 Spline
GM 4x2
Mainshaft Nut QT2002 QT2001
QT2002 QT2001
1-1/2" Hex
Mainshaft Holding NLA QT2000 NLA QT2011 N/A N/A
5th Gear Nut
Torx® Cross Bolt
N/A QT9205 N/A QT9205 N/A N/A
Output Seal Installer N/A QT1801 N/A QT2058
Not Used Not Used
Tailshaft Bushing Remover and Installer Not Used Not Used Not Used QT2044 Not Used Not Used


Front Bearing Cup Installer
QT1802 Use with QT1101 or QT1119 Driver Handle. Also can use flat side to install Dodge 4x4 Rear Output Seal
Countershaft Front Bearing Installer QT2004 Can also use to press 3-4 Synchro Hub on original equipment mainshafts
Input Bearing & Countershaft Rear Bearing Installer QT2005 Can also use to install Input Seal
Input Bearing Cup Installer QT1801 Use with QT1100, QT1101, QT1116, or QT1119 Driver Handle.
Countershaft Support QT2006 Use to support front of countersahft when installing countershaft rear bearing
1-2 Synchronizer Support QT2008 Use to support 1-2 synchronizer hub during synchronizer assembly
10mm 1/2" Drive 12 Point Socket QT1020 USA Made Impact Socket for Factory Tailshaft Housing Bolts
Long Shank Punch for Shift Lug QT9300 3/16" x 8" Shank for 5th Gear Shift Lug Roll Pin
tech note

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 Threadlocker
S9978 1 gram Threadlocker
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



Chevy and GMC:
1999-2007 All with NV4500 5 Speed

Dodge and Ram:
1992-2005 All with NV4500 5 Speed