QU10716 1992-2007 GM NV4500 4x4 Rear Housing

QU10716 1992-2007 GM NV4500 4x4 Rear Housing is a genuine New Old Stock (NOS) New Venture precision machined, cast aluminum NV4500 4x4 tailhousing for all 1992-2007 GM New Venture NV4500 5 speed manual transmissions in K1500, K2500, and K3500 4x4 trucks. 8 bolt front bolt pattern x 6 bolt round rear bolt pattern. USA Made.

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Dan the Gear Man® Tech Notes:
I.D.
Fits
Sealant
Cracked Housing
Tools
Rear Output Applications
Matching Parts
Applications

Tech Note 1: I.D.
QU10716 GM NV4500 Tailshaft housing is approximately 8-1/16” long. The casting number is 18306. The bolt pattern on the front is the universal NV4500 8 bolt main case to rear housing pattern. The rear of the housing has the standard, round, 6 bolt pattern used by Chrysler, Ford, and General Motors, however, the index or clock position of the bolt holes is unique to General Motors applications. QU10716 does NOT have have a seal mounting location. For GM 4x4s that used the NV4500 transmission, the transfer case input seal acts as the transmission rear output seal.

Tech Note 2: Fits
GM NV4500 4x4 transmissions were built with either a steel spacer or a press-on, rubber isolated vibration dampener between the mainshaft 5th gear and mainshaft 5th gear nut. QU10716 will work with either configuration.

Tech Note 3: Sealant
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: Cracked Housing
If your original transmission rear housing cracked, check for broken motor mounts. A broken motor mount can cause the engine to twist beyond what the aluminum rear (tailshaft) housing can handle. Loose Transfer Case mounting bolts can also cause a rear housing to crack. A transmission that is run out of oil will frequently have a cracked housing, but it may be difficult to determine if the case cracked before or after the lube oil was lost.

Tech Note 5: 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 6: Rear Output Applications
NV4500 Transmissions are frequently used for conversion applications. The Table below lists the most popular rear output applications and their associated parts.

  *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 7: Matching Parts
QU10106 12 Point Metric Tailshaft Housing Bolt with factory applied Threadlocker
QU10146 Tailshaft Housing Alignment Dowell
TK30052 Transmission to Transfer Case Gasket
NV4500GME Transmission Main Case for 1992-1995 GM
NV4500E Transmission Main Case for 1996 GM
NV4500L Transmission Main Case for 1997-2007 GM
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
QU90020 NV4500 Manual Transmission Oil
TM1003 NV4500 Shop Manual
VSG1003DVD NV4500 Overhaul Video

Applications:
Chevy and GMC:
K1500, K2500, K3500 with New Venture NV4500 5 Speed Manual Transmission: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007