Silverado Help. (2007 Classic)

jonny72888 · January 17, 2011

Well i just got this truck and it has 45k on it. I wanted to change the oil, transmission flush, transfer case, front and rear diffs, and spark plugs. Here is my question. When I went to get parts a 2007 classic does not come up on the list of trucks. Its 06 or 07. They do not have the same parts listed for them. What do I do? I want to make sure I get the right parts/oil for my truck.

It has the 5.3 flex fuel, g80 locker, 4speed, push button 4x4. I have the build sheet if you need to know the parts. Im going to switch everything to synthic

LeoS41280 · January 18, 2011

I have an 07 new body style and have run into the same problem . I have got to where I tell them its an 08. I bet most parts on an 06 are the same as your 07 old body style. Just tell them its an 06.

jonny72888 · January 18, 2011

I just want to make sure that everything that is used on a 06 would be fine for the 07. When I ordered floor mats I just ordered them for a 06 but I didnt want to be messing around with the engine and tranny.

MS3DALE · January 18, 2011

As Leo said,Just tell them its an '06 and you'll be fine for most parts.

*HOWEVER* The one thing that is different is the transfer case fluid,Your '07 GMT800 "Classic" probably has the AutoTrak transfer case which uses GM specific AutoTrak II fluid *DO NOT* use anything but the GM AutoTrak II fluid.

(For reference most '07-up GMT900 trucks now use Dexron VI ATF in the transfer case in place of AutoTrak fluid)

jonny72888 · January 18, 2011

As Leo said,Just tell them its an '06 and you'll be fine for most parts.
*HOWEVER* The one thing that is different is the transfer case fluid,Your '07 GMT800 "Classic" probably has the AutoTrak transfer case which uses GM specific AutoTrak II fluid *DO NOT* use anything but the GM AutoTrak II fluid.

(For reference most '07-up GMT900 trucks now use Dexron VI ATF in the transfer case in place of AutoTrak fluid)

Ok, I guess ill have to look at the build sheet to see which one I have. How are the GM dealers? I had a Jeep before and Mopar sucked. Everything way super over priced.

MikeNH · January 18, 2011

As Leo said,Just tell them its an '06 and you'll be fine for most parts.
*HOWEVER* The one thing that is different is the transfer case fluid,Your '07 GMT800 "Classic" probably has the AutoTrak transfer case which uses GM specific AutoTrak II fluid *DO NOT* use anything but the GM AutoTrak II fluid.

(For reference most '07-up GMT900 trucks now use Dexron VI ATF in the transfer case in place of AutoTrak fluid)

Ok, I guess ill have to look at the build sheet to see which one I have. How are the GM dealers? I had a Jeep before and Mopar sucked. Everything way super over priced.

I would imagine all you need to know is what sort of 4WD control you have- is it a lever or buttons? If it has buttons is there an "Auto" one? If so, then you have autotrac. If not, then you don't.

jonny72888 · January 18, 2011

As Leo said,Just tell them its an '06 and you'll be fine for most parts.
*HOWEVER* The one thing that is different is the transfer case fluid,Your '07 GMT800 "Classic" probably has the AutoTrak transfer case which uses GM specific AutoTrak II fluid *DO NOT* use anything but the GM AutoTrak II fluid.

(For reference most '07-up GMT900 trucks now use Dexron VI ATF in the transfer case in place of AutoTrak fluid)

Ok, I guess ill have to look at the build sheet to see which one I have. How are the GM dealers? I had a Jeep before and Mopar sucked. Everything way super over priced.

I would imagine all you need to know is what sort of 4WD control you have- is it a lever or buttons? If it has buttons is there an "Auto" one? If so, then you have autotrac. If not, then you don't.

I have the push button. so it must be the autotrac.

So here is what I know so far...

Mobil1 5w30 for the engine ( 5qts?)

GM autotrak fluid for the transfer case. how much do I need?

So leaves the axles and transmission.

I would like to use Mobil1 gear oil in the axles. what weights?

At the parts store they have AFT that says for GM trucks. can I use that?

MS3DALE · January 18, 2011

As Leo said,Just tell them its an '06 and you'll be fine for most parts.
*HOWEVER* The one thing that is different is the transfer case fluid,Your '07 GMT800 "Classic" probably has the AutoTrak transfer case which uses GM specific AutoTrak II fluid *DO NOT* use anything but the GM AutoTrak II fluid.

(For reference most '07-up GMT900 trucks now use Dexron VI ATF in the transfer case in place of AutoTrak fluid)

Ok, I guess ill have to look at the build sheet to see which one I have. How are the GM dealers? I had a Jeep before and Mopar sucked. Everything way super over priced.

I would imagine all you need to know is what sort of 4WD control you have- is it a lever or buttons? If it has buttons is there an "Auto" one? If so, then you have autotrac. If not, then you don't.

I have the push button. so it must be the autotrac.

So here is what I know so far...

Mobil1 5w30 for the engine ( 5qts?) 6 qts

GM autotrak fluid for the transfer case. how much do I need? 2 qts

So leaves the axles and transmission.

I would like to use Mobil1 gear oil in the axles. what weights? 75-90 or 80-90

At the parts store they have AFT that says for GM trucks. can I use that? use Dexron VI ATF ONLY

Answers in Red.

MikeNH · January 18, 2011

I have the push button. so it must be the autotrac.

So here is what I know so far...

Mobil1 5w30 for the engine ( 5qts?)

GM autotrak fluid for the transfer case. how much do I need?

So leaves the axles and transmission.

I would like to use Mobil1 gear oil in the axles. what weights?

At the parts store they have AFT that says for GM trucks. can I use that?

Not totally sure on that- you might've been able to get pushbutton and NOT the auto setting. Fluid amounts/specifications are all in your manual.

MS3DALE · January 18, 2011

He has AutoTrak.

MikeNH · January 18, 2011

He has AutoTrak.

I trust ya, no worries. My 03 had the manual shifter so I never paid much attention to the specialty fluid the other trucks needed,

jonny72888 · January 18, 2011

It did not come with the manual.

Ok looks like I have all of the info I need.

As far as plugs I was going to use NGK plugs and wires.

EDIT:

How much oil does the front take and the rear? 3qts rear 2.5 front?

Also the tranny? 8qts?

LeoS41280 · January 18, 2011

It did not come with the manual.
Ok looks like I have all of the info I need.

As far as plugs I was going to use NGK plugs and wires.

Most people on here will tell ya to stay with AC Delco stuff.

MS3DALE · January 18, 2011

It did not come with the manual.
Ok looks like I have all of the info I need.

As far as plugs I was going to use NGK plugs and wires.

Most people on here will tell ya to stay with AC Delco stuff.

Yep....Just stay with AC-Delco

jonny72888 · January 18, 2011

Ok, AC Delco it is!

I know with my jeep I had to get gear oil with Limited Slip Additive. I would think that I would not need that for the rear because its a locker but I would need the additive for the front.