Installing Axle Back ? and Diff/Trans Fluids while there
Thread Starter
Instructor
Joined: Jun 2014
Posts: 146
Likes: 28
From: Union MO
Installing Axle Back ? and Diff/Trans Fluids while there
2005 Z51 manual coupe 14K miles, recent purchase second owner. Got the OEM exhaust off, thought I should service diff & trans fluid while it's easy to get to. A few questions:
1. Should I replace the heavy "donuts" (I guess they are gaskets) where the OEM H pipe bolts up to the front flanges of car, or OK to just reuse existing?
2. Trans drain and fill plugs appear marked and I don't have to mess with cooler lines or anything else....just a basic drain and fill correct?
3. I see orange sealant on plugs, what is used on the threads when servicing?
4. Diff appears same, just a bottom drain and a side fill plug with nothing else to deal with? I get some noise on a curving backup when car is cold I think I remember a TSB for fluid change without modifier now?
5. I have the rear on 14" Race Ramp cradles and the front on 10" Race Ramps. For the fluids do I need to further lift the front to be closer to level?
Thanks for any input, did this many times on a 2012 Mustang GT but never serviced the Corvette rearend. I'm retired so thought it would be nice to DIY this stuff.
DLV
1. Should I replace the heavy "donuts" (I guess they are gaskets) where the OEM H pipe bolts up to the front flanges of car, or OK to just reuse existing?
2. Trans drain and fill plugs appear marked and I don't have to mess with cooler lines or anything else....just a basic drain and fill correct?
3. I see orange sealant on plugs, what is used on the threads when servicing?
4. Diff appears same, just a bottom drain and a side fill plug with nothing else to deal with? I get some noise on a curving backup when car is cold I think I remember a TSB for fluid change without modifier now?
5. I have the rear on 14" Race Ramp cradles and the front on 10" Race Ramps. For the fluids do I need to further lift the front to be closer to level?
Thanks for any input, did this many times on a 2012 Mustang GT but never serviced the Corvette rearend. I'm retired so thought it would be nice to DIY this stuff.
DLV
Race Director
Joined: Jun 2004
Posts: 13,949
Likes: 705
From: WI
The 05 has the diff plug a little different iirc but it's not a real prob. The oil will pour out onto the leaf spring so make a funnel or deflector (there are prob pix if you search). For the last twenty years I use diff oil with the lube already included without any issues. Some still like the oil and lube separate.
this one says don't add more.
