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Thread: 4WD Silverado question
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09-09-2010 #1
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4WD Silverado question
My 3500 crewcab.
I was at the tailgate and noticed drops of oil, uh oh....leaned to take a look underneath and noticed the pumpkin was wet, rolled on under and realized that it was coming from farther up front.
Looks like either the bolts or the seam where the two halves of the transfer case go together is leaking.
Is there a gasket in there or did the factory just smear some gasket sealer between the two halves?
The last t-case that I had a part was the one in my 85 p/u, so I'm not sure how much has changed since then.
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
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09-09-2010 #2
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its a gasket maker. GM part number 1052943.
Instagram: CamaroAJ
09-09-2010 #3
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Thanks....BTW, it's a 2004 model truck.(in case that matters)
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-09-2010 #4
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Take a good look at the tailhousing of the transfer case about 8 inches from the end at about the 3 oclock position. The fluid pump on the inside rattles and wears a hole in the case and fluid weaps all over. Ive seen quite a few of them.
Nathan Shaw
71 Nova, 1000+whp 5.3, 8 second autoXer.
09-09-2010 #5
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The fix is either replace that half or JB it. The reman ones are JB's right from GM!
Nathan Shaw
71 Nova, 1000+whp 5.3, 8 second autoXer.
09-09-2010 #6
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Ah...OK
Originally Posted by LS1NOVA
I'll take a closer look. I used brake-kleen on it last night and then just refilled the t-case. I glanced under this morning when I stopped for coffee and saw that it was damp again.1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-10-2010 #7
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Whelp.....Nathan,
You guys hit the nail on the head. I cleaned it off really good and dry lastnight, took it for a spin, crawled back under and followed the drop of oil up to a pin hole in the topside of the tailshaft housing....uggh.
Guess I will try the JB weld until I can do better. Wonder what that tailshaft housing will cost?
Hard to believe that little pin hole can leak so much fluid...LOL I mean, it's way above the fluid level in the t-case and I can't imagine there is alot of pressure. It sprayed all over the exhaust, cross member, and the front end of the gas tank.....and everything farther back is wet too.1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-10-2010 #8
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they are around $300 new from gm. search for an aftermarket oil pump and you'll never have that problem again. i've had to replace a few of them, save it and throw it in a fire to add some color lol.
Instagram: CamaroAJ
09-10-2010 #9
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Originally Posted by CamaroAJ
magnesium in a fire?...LOL, that should be fun....maybe I will add some water after I get it lit....LOL
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-10-2010 #10
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it will make it a whiteish greenish lol.
Instagram: CamaroAJ
09-10-2010 #11
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Lookee what I found out about the "pump rub" issue.....1998-2007 trucks
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-10-2010 #12
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1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-10-2010 #13
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1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
09-11-2010 #14
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Yep, heard about the pump problem, trying to decide when to tear into mine to make sure it doesnt happen
2006 LT 4x4 ext cab
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