My Tahoe is the 4 wheel drive 6 speed auto and I want to replace the fluids and filter so my questions is, how can I identify what tranny is in it and what differentials and transfer case it has? Are there tags on each component?
2017 Tahoe 5.3 - Tranny, Diff and Transfer Case
- Thread starter Dan17
- Start date
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Your owners manual will list all your required fluids for that rig.
Jeff_
Full Access Member
You have the 6L80 trans.
Like PNW VietVet said, the owners manual lists everything that you need.
Like PNW VietVet said, the owners manual lists everything that you need.
Bob2C
Full Access Member
Go with AMSOIL Signature for transmission and 75w-90 Severe Gear for the differentials.. You wont be disappointed... Just my .02
One last question. I've looked thru my owners manual and my Haynes service manual and I don't see any mention about Rear Axle Lubricant or Gear Oil Additive which I believe is needed for Limited Slip rear ends.
Is this needed for this vehicle when changing the rear diff fluid? It is listed on the RockAuto web site.
Is this needed for this vehicle when changing the rear diff fluid? It is listed on the RockAuto web site.
The chart above, supplied by @Jeff_, lists the lubricant you should use for the rear axle. You do not need the additive you speak of.
swathdiver
Full Access Member
Your rear axle is a Salisbury 12-bolt 9.5" axle produced by AAM. It does not require any additives. The front axle is a Saginaw 8.25" IFS also made by AAM, the transfer case was produced by MagnaPower and is either an MP3010 (single speed - RPO NP0) or the MP3023 (2-speed - RPO NQH).
Consider "flipping the pill" on the 6L80 transmission to make it last longer. They have a shorter life in your car than our older ones presumably because GM put a thermostat in them to keep the temperatures up to what the coolant is.
TollKeeper
Full Access Member
I think this is flipping the pill..
Jeff_
Full Access Member
The front diff you just undo a bolt to drain and a bolt to fill. No disassembly.
The rear diff gasket is re-useable since its the rubber and metal kind. Make sure you clean off the magnet in the rear diff - it's a circle magnet located right on the bottom of the pumpkin. Flush it all out with brake cleaner etc.
And on the front diff be sure to loosen/remove the fill plug before draining. You don't want to be "that guy" who drained it and can't get the fill plug out.
I would do the same thing for the o-rings. Just a thin film, not gobs of it.
I'm in the process of installing the Sure-Cool System and I have not seen or heard of any required torque spec's for the 13MM bolt securing the tranny thermostat block to the tranny or the 10mm bolt holding down the plate for the two lines going into the thermostat block.
Should these two bolts be torqued?
BTW, the tranny filter and seal are now installed. Fun job.
Should these two bolts be torqued?
BTW, the tranny filter and seal are now installed. Fun job.
