QU10173 GM 4x4 Mainshaft Spacer

photo

QU10173 GM 4x4 Spacer was used in lieu of QU10172 Vibration Damper on both gas and Diesel 4x4 transmissions with certain year and engine combinations. The Spacer, which is simply a machined piece of very heavy wall, special diameter steel tubing, is located between the back of the mainshaft 5th gear and the nut set. 

QU10173
GM 4x4 Spacer
$19.98
* Kits made up of multiple items may not show an inventory in-stock status but are almost always in stock!

tech note

Dan the Gear Man® Tech Note 1:
QU10173 is a machined, heavy wall tube that is located between the mainshaft 5th gear and mainshaft nut set on most GM NV4500 4x4 transmissions. Compared to QU10172 Vibration Dampener, QU10173 is probably not as effective in preventing 5th Gear Nut Failures, however, such failures are not nearly as common on GM transmissions compared to Dodge models. With QU10173, you can use either QT2002 mainshaft nut wrench or QT2028 special spanner socket to install and remove the mainshaft nut.  

tech note

Dan the Gear Man® Tech Note 2:
GM New Venture NV4500 4x4 transmissions use either QU10172 Dampener or QU10173 Spacer between the mainshaft 5th gear and mainshaft nut set. As far as fitment, they are interchangeable as all other transmission parts are the same.

tech note

Dan the Gear Man® Tech Note 3:
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.

TOOLS for SPECIFIC NV4500 MODELS

Component 23 Spline
Dodge 4x4
NV4500LD
29 Spline
Dodge 4x4
NV4500HD
30 Spline
Dodge 4x2
NV4500LD
31 Spline
Dodge 4x2
NV4500HD
32 Spline
GM 4x4
35 Spline
GM 4x2
Mainshaft Nut QT2002 QT2001
QT2036
QT2002 QT2001
QT2036
QT2002
QT2028
1-1/2" Hex
Socket
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
CALL
Not Used Not Used
Tailshaft Bushing Remover and Installer Not Used Not Used Not Used QT2044 Not Used Not Used

TOOLS For ALL NV4500 MODELS

Countershaft
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

Dan the Gear Man® Tech Note 4:
NV4500 Transmissions are frequently used for conversion applications. The Table below lists the most popular rear output applications and their associated parts.

Component 23 Spline
Dodge 4x4
29 Spline
Dodge 4x4
31 Spline
Dodge 4x2
w/Speedo
31 Spline
Dodge 4x2
No Speedo
32 Spline
GM 4x4
35 Spline
GM 4x2
Short*
35 Spline
GM 4x2
Long*
Mainshaft  QU10214 QA1045 or
QU10011
QU10013 QU10013 QU10098 QU10719 QU10212
Rear Housing QU10057 QU10057 QU10024 QU10083 QU10716 QU10233 QU10217
5th Gear** QU10007
QU10086
QU10067 QU10067 QU10067 QU10007
QU10086
QU10007
QU10086
QU10007
QU10086
5th Gear
Nut Set
QK1093
QU10097
QU10069 QU10069 QU10069 QK1093
QU10097
See Yoke
Nut
See Yoke
Nut
Speedometer
Drive
Not Used Not Used QU10027
QK1143
Not Used Not Used QU10177 QU10177
Speedometer
Snap Ring
Not Used Not Used QU10330
QK1143
Not Used Not Used Not Used Not Used
Speedometer
Sender
Not Used Not Used Contact
Dealer
Not Used Not Used QU10228 QU10228
Speedometer
O-Ring
Not Used Not Used QU10678 Not Used Not Used incl. with
QU10228
incl. with
QU10228
Spacer Not Used Not Used Not Used Not Used QU10172
QU10173
Not Used QU10738
Bushing or
Bearing
Not Used Not Used QU10025 QU10025 Not Used QU50155 QU50155
Bearing
Snap Ring
Not Used Not Used Not Used Not Used Not Used QU10319 QU10319
Output Seal QU10123 QU10123 QU10023 QU10023 Not Used QU10720 QU50204
Gasket TK10519 TK10519 Not Used Not Used TK30052 Not Used Not Used
Yoke Not Used Not Used QU40700
QU40354
QU40495
QU40700
QU40354
QU40495
Not Used QU10184
QU10727
QU30094
QU10183
QU40902
Yoke
Spline Seal
Not Used Not Used QU10026 QU10026 Not Used QU30009 QU30009
Yoke Washer Not Used Not Used Not Used Not Used Not Used QU30095 QU30095
Yoke Nut See 5th
Gear Nut
See 5th
gear Nut
See 5th
Gear Nut
See 5th
Gear Nut
See 5th
Gear Nut
QU10181 QU10181

 *Electronic, Screw-In Speedometer Sensor
**22 Tooth Mainshaft 5th Gears listed for 1992-2005 Dodge and 1995-2007 GM with 5.61:1 1st gear ratio. 1992-1994 GM with 6.34:1 first gear ratio use 19 Tooth QU10728 Gear. QU10728 is NOT compatible with Dodge 29 and 31 Spline Output Shafts.

tech note

Dan the Gear Man® Tech Note 5:
Matching Parts for QU10173 Spacer:
QU10728 Mainshaft 5th Gear 1992-1994
QU10007 or QU10086 Mainshaft 5th Gear 1995-2007
QU10098 32 Spline 4x4 Output Shaft for GM
QU10172 Vibration Dampener
QK1093 Original Equipment Mainshaft Nut Set for Dodge Light Duty or GM 4x4
QU10097 Aftermarket Nut Set with Set Screws for Dodge Light Duty or GM 4x4
QT2002 Mainshaft Nut Wrench
QT2028 Mainshaft Nut Socket for GM 4x4 models with Vibration Dampener
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
QU90020 NV4500 Manual Transmission Oil
TM1003 NV4500 Shop Manual
V1003DVD NV4500 Overhaul Video

Application

Chevy and GMC:
1992-1999 K1500, K2500,  K3500 with NV4500 5 Speed
2000-2007 K2500, K3500 with NV4500 5 Speed