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Username Post: Rear end / Transaxle leak        (Topic#259260)
Chevyguy04 
Member
Posts: 213

Reg: 05-23-05
03-14-11 04:54 PM - Post#2061641    

Went into the pole barn this weekend and noticed a spot under the rear of the car, felt it and it sure wasn't just moisture collecting on the concrete. I looked underneath and looks like there is oil on the bottom side of the transaxle because dirt was sticking to it.

I haven't put it up on the lift to pin point it, but is there any particular weak spots where there has been known leaks???

Thanks!
Scott
2012 Chevy Tahoe
2007 Yukon Denali
2003 Corvette 50th
2002 Chevy 2500HD
1969 Impala 396
1955 Chevy Pickup 427 450HP
1969 Camaro z28




 
Sting Ray 
"9th Year" Silver Supporting Member
Posts: 2637
Sting Ray
Loc: Drag City, California
Reg: 02-19-05
03-14-11 06:02 PM - Post#2061691    
    In response to Chevyguy04

Very common, no recall but there is a bulletin on it. My '00 started leaking at around 90K at the transaxle/axle. It was replaced at 98K on a 100K warrenty It's been awhile, if I remember what the fix was I'll repost.
Bleeds Chevy Orange

1957 Chevy 150, 3-spd
1964 Corvette two top convert, 4-spd
1965 Pontiac GTO hrdtp, tri-power, 4-spd, 4.11's
1967 El Camino, 427, 4-spd
2009 Corvette coupe, triple black, 436 hp, 6-spd


 
Chevyguy04 
Member
Posts: 213

Reg: 05-23-05
03-14-11 07:30 PM - Post#2061739    
    In response to Sting Ray

Yea I'd appreciate it if you could find that.

Only have 36,000 miles on mine.
Scott
2012 Chevy Tahoe
2007 Yukon Denali
2003 Corvette 50th
2002 Chevy 2500HD
1969 Impala 396
1955 Chevy Pickup 427 450HP
1969 Camaro z28




 
Sting Ray 
"9th Year" Silver Supporting Member
Posts: 2637
Sting Ray
Loc: Drag City, California
Reg: 02-19-05
03-15-11 10:38 AM - Post#2062015    
    In response to Chevyguy04

I believe this is for the automatic, not sure what trans you have.

#01-07-30-032D Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover (Channel Plate) Gasket) - (Oct 30, 2006)

This is what mine had.

#03-04-20-006A Fluid Leak at Rear Axle (Replace Left Differential Side Cover O-Ring and Left Axle Shaft Seal, Add Sealant to Side Cover Flange) - (May 9, 2006)

Throwing this in for FYI.

#04-07-30-025A Transmission Fluid Leak, Inoperative 2nd/3rd/4th Gears, No Movement, Case Cracked or Broken at 2-4 Servo (Repair Transmission and Install New Retaining Ring) - (Jul 27, 2004)

I think this is both auto and manual trans.

Condition
Some customers may comment on fluid leaking from the rear axle.

Correction
Verify that the fluid leak is rear axle fluid, not transmission fluid. Replace the left differential side cover O-ring and left axle shaft seal. Engineering has recommended that sealant be applied to the side cover prior to installation.


88996703 Seal, Output Shaft Oil


89047953 O-Ring, Differential Side Cover


1052942 (Canada 10953466) Sealant

Suggested service procedure once axle and muffler are removed on the drivers side.

Drain the rear differential fluid.
Remove the retaining bolts and the damper/tuned absorber from the differential (97-04 model years).
Loosen the nut retaining the transmission to the transmission LH mounting stud.
Install a second nut onto the stud.
Remove the stud from the differential cover.
Clean any dirt or debris from around the differential cover.
Remove the bolts retaining the differential cover.
Remove the differential cover from the differential.
Remove and discard the O-ring seal and the axle seal from the differential cover.
Clean the O-ring sealing surface on the differential cover and the differential housing.
Install new O-ring, P/N 89047953, to the differential cover.
Apply a continuous 3 mm (0.125 in) bead of sealant, P/N 1052942 (Canadian P/N 10953466), or equivalent, to the cover flange.
Apply sealant around the bolt holes. Keep sealant away from the O-ring.
Install the differential cover to the differential.
Install the differential cover retaining bolts.
Tighten the bolts to 28 N•m(20 lb ft).

Bleeds Chevy Orange

1957 Chevy 150, 3-spd
1964 Corvette two top convert, 4-spd
1965 Pontiac GTO hrdtp, tri-power, 4-spd, 4.11's
1967 El Camino, 427, 4-spd
2009 Corvette coupe, triple black, 436 hp, 6-spd


 
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