QK1172 Primary Bearing and Seal Kits for 1996-2007 GM NV4500

QK1172 Torque King® Primary Bearing and Seal Kits for 1996-2007 GM NV4500 4x4 Transmissions Restore critical mainshaft and countershaft end-play with genuine Timken® tapered bearings! These are the exact fit, premium-duty bearings as specified by New Venture/MTM. QK1172 Primary Bearing and Seal Kit includes input, output, and countershaft bearings with bearing cups, plus countershaft front case seal, input seal, input shaft to mainshaft pocket bearing, input shaft thrust bearing, transmission to transfer case adpater gasket, RTV sealant, and 2 types of Threadlocker. Contains USA made and imported parts.

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:
1996 Change
1997 Change
Timken Bearings
Gasket Included
Lubricants, Sealants, Threadlockers
Matching Parts
NV4500 Tools
Matching Bearings and Parts

Tech Note 1: 1996 Change
For the 1996 model year, GM changed the clutch slave cylinder from an external style used for 1992-1995 to an internal concentric slave cylinder that bolts to the front of the new, aluminum low profile input bearing retainer. As part of this change, a slightly thinner input bearing cup is used. 1992-1995 GM transmissions require QU10125 Input Bearing Cup. 1996-2007 use QU10137. For all years, the Input bearing is QU10124.

Tech Note 2:  1997 Change
In 1997, New Venture changed the NV4500 reverse gear ratio from 5.61:1 to 5.04:1. The reverse idler gear bearings are different for the two ratios. For 1992-1996 use (2) QU10018 Reverse Idler Bearings. 1997-2007 requires one double row QU10019 Reverse Idler Bearing. The two Bearings are not interchangeable.

Tech Note 3: Timken Bearings
Six of the eight taper bearing numbers used by New Venture in the NV4500 transmission are Timken® high performance parts. While these bearings and cups are dimensionally the same as standard bearing numbers, the materials and finish are superior. The countershaft and input taper bearings/cups included in our Kits are the exact, high performance Timken® numbers specified by New Venture. These bearings can be identified by a one or two letter suffix after the base bearing part number. It is important to use the correct bearings in your NV4500 transmission as substituting standard bearings for high performance bearings will reduce the torque rating and longevity of your transmission.

Tech Note 4: Gasket Included
GM NV4500 4x4 Transmissions do not use a rear output seal, but they do require TK30052 Transmission to Transfer Case Adapter Gasket which is included with QK1172 Kits.

Tech Note 5: 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 Threadlocker
S9978 1 gram Threadlocker
S9979 1 gram High Strength Red Threadlocker
S24026 High Temperature Threadlocker for Mainshaft Nut

Tech Note 6: Matching Parts
Matching Parts for QK1172 Bearing Kits:
TKA1182 1992-1996 NV4500 Needle Bearing Kit
TKA1180 1997-2007 NV4500 Needle Bearing Kit
QU10221 Basic NV4500 Small Parts Kit
QK1010 Master Small Parts Kit
QK1104 NV4500 Mainshaft and Countershaft Thrust Washer Kit
QK1101 NV4500 Reverse Idler Gear Thrust Washer Kit
QK1098 Teflon Bearing Spacer Kit
QK1099 NV4500 Synchro Strut and Spring Kit use for 3-4, 5th, or Reverse
QK1100 NV4500 Synchro Strut and Spring Kit for 1st-2nd Synchro
QK1094 Shift Fork Pad Kit 1992-1997.5
QK1095 Shift Fork Pad Kit 1997.5-2005
QU10131 Shift Tower Boot for 1992-1994
QU10157 Shift Tower Spacer Plate for 1995-2007
QU10008 Series Countershaft Shim Kits
QU10009 Series Mainshaft Shim Kits
QK1109 NV4500 Main Case Roll Pin Kit
QU10097 Mainshaft Nut Set for 1992-2007 4x4 GM NV4500
QK1102 Lock Ring Kit
QK1103 1-2 Synchro Snap Ring Kit
QU10061 and QU10062 Complete Bearing and Seal Kits for GM NV4500 Transmissions

Tech Note 7: 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.

Tech Note 8: Matching Bearings and Parts
Included and optional Bearings and Parts for GM 4x4 NV4500 Primary Bearing and Seal Kits are:

Applications

1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 All GM NV4500 4x4 Transmissions