QU10085 Replacement 35 Tooth Mainshaft Reverse Gear

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QU10085 Replacement NVG 35 Tooth Synchronized Reverse Gear, is a replacement gear for 1997-2005 Dodge and 1999-2007 GM New Venture NV4500 5 speed manual transmissions with synchronized reverse gear. Your matching Reverse Idler Gear will be about 1.5" wide (See QU10079). Imported

Also see QU10022 Genuine New Venture 35 Tooth Synchronized Reverse Gear

QU10085
35 Tooth Mainshaft Reverse Gear
$116.28
* 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:
QU10085 fits fully synchronized 1997-2007 New Venture NV4500 Transmissions. 1997-2005 Dodge and 1999-2007 GM transmissions are fully synchronized for all gears including reverse. 1997-1998 GM NV4500 transmissions were only synchronized in the forward speeds. You can upgrade your 1997-1998 GM NV4500 transmission by replacing your original reverse gear parts with the following parts:
QU10022 or QU10085 35 Tooth Synchronized Mainshaft Reverse Gear
QU10710 or QU10204 Synchronized Reverse Gear Clutch
QU10003 Reverse Synchronizer Ring
QK1099 Synchro Strut Kit

Optional:
QU10050 Cast Iron Reverse Shift Fork and Pads to replace original aluminum fork 
QK1095 Shift Fork Pads for QU10050 Fork

tech note

Dan the Gear Man® Tech Note 2:
Early (1992-1996) and Late (1997-2007) NV4500 Mainshaft Reverse Gears are not interchangeable. When first introduced, the NV4500 Transmission had a dual-plane reverse where the power transfer path from the counter shaft to the mainshaft reverse gear is offset. The front half of the 2-3/4" long reverse idler gear engages the countershaft, while the rear half drives the mainshaft reverse gear. Since there are no teeth on the counter shaft below the mainshaft reverse gear, that gear can be larger diameter and have more teeth (39). The 1992-1996 transmissions have a 6.34:1 reverse for 1992-1994 GM and 5.61:1 reverse for all Dodge and 1996 GM.

Effective with the 1997 model year, New Venture NV4500's use a single-plane reverse where the power transfer path from the countershaft to the mainshaft is inline. The full working width of the narrow, 1-1/2" wide reverse idler gear is inline with both the countershaft gear teeth and mainshaft reverse gear teeth. Since the countershaft drive teeth are now located directly under the mainshaft reverse gear, the mainshaft reverse gear diameter had to be reduced to the point it now has only 35 teeth. Less teeth means less gear reduction. All 1997 model year and newer NV4500 transmissions have a 5.04:1 Reverse.

The difference in the transmission case reverse idler gear pocket and mounting boss for the single and dual plan reverse means the countershaft, mainshaft reverse gear, reverse idler gear, and reverse idler shaft are NOT interchangeable between early and late cases.

tech note

Dan the Gear Man® Tech Note 3:
Reverse Gear tooth breakage is pretty rare with the NV4500. The most common problem is wear on the rear thrust face which is almost always caused by a loose mainshaft fifth gear and/or lubrication issues (dirty or incorrect oil). In advanced cases, the reverse gear needle bearing will fail and weld itself to the shaft or gear.

tech note

Dan the Gear Man® Tech Note 4:
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 5:
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 6:
Matching Parts for QU10085 35T Synchronized NV4500 Reaverse Gear
QU10022 New Venture OE 35 Tooth Synchronized Mainshaft Reverse Gear
QU10710 or QU10204 Synchronized Reverse Gear Clutch
QU10039 Sliding Ring or Sleeve for Reverse Gear Lockup
QU10003 Reverse Synchronizer Ring
QK1099 Synchro Strut Kit
QU10058 Reverse Gear Bearing
QK1098 Teflon Bearing Spacer Kit
QU10192 and QU10707 Countershafts
Mainshafts: See Tech Note
TM1003 NV4500 Shop Manual
V1003DVD NV4500 Overhaul Video
QT2000 29 Spline Shaft Wrench
QT2002 Mainshaft Nut Wrench GM 4x4 and Dodge Light Duty
QT2001 Mainshaft Nut Wrench, 1/2" Drive Dodge Heavy Duty
QT2028 Mainshaft Nut Wrench GM 4x4 with Vibration Dampener
QT2036 Mainshaft Nut Wrench, 3/4" Drive Dodge Heavy Duty

tech note

Dan the Gear Man® Tech Note 7:
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 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

Application

Chevy and GMC:
1999 C1500, K1500, C2500, K2500, C3500, C3500HD, K3500 with NV4500 5 Speed
2000-2006 C2500, K2500, C3500, K3500 Standard and HD Pickup based models with NV4500 5 Speed
2000-2002 C3500HD 15,000 Lb. GCVW Cab and Chassis with NV4500 5 Speed
2007 C2500, K2500 Silverado Classic and Sierra Classic with NV4500 5 Speed

Dodge and Ram:
1997-2003 Ram 2500, Ram 3500 with V10 and NV4500HD 5 Speed
1997-2004 Ram 2500, Ram 3500 with Cummins Diesel and NV4500HD 5 Speed
1997-2005 Ram 2500, Ram 3500 with gas V8 and NV4500LD 5 Speed