09 Tahoe XFE Suspension

[Phantomman]

I have an 09 Tahoe XFE. The Suspension RPO is ZW7 but the shocks recommended on this site for a ZW7 package say "except for XFE package". My question is what shocks should I use? The OEM ones have been discontinued, I'm lost!!!

 

[swathdiver]

Hi William. How do you like the XFE? Does it really get better fuel economy?

Open your glovebox and look at the RPO Sheet on the inside door. Look for codes that begin with 6 and 7, these are your left and right shock codes for the front. From that we can extrapolate what the rears are.

Also let us know if you have G69 along with ZW7 too.

 

[swathdiver]

I'm coming up with 20833776 for the rear shocks. ACDelco's number for this is 540-576. Summit Racing looks to have them.

I think the front are 20765171/540-460 but should check that against your RPO sheet (6CN, 6CS, 6RN and 7CN, 7CS, 7RN).

 

[Doubeleive]

I'm coming up with 20833776 for the rear shocks. ACDelco's number for this is 540-576. Summit Racing looks to have them.

I think the front are 20765171/540-460 but should check that against your RPO sheet (6CN, 6CS, 6RN and 7CN, 7CS, 7RN).

speaking of which I am looking at control arms and they say without off road package? wth is a off-road package on a gmt900

 

[swathdiver]

speaking of which I am looking at control arms and they say without off road package? wth is a off-road package on a gmt900

Good old Z71 with Rancho Shocks and specially tuned springs. It would stand to reason that they might use the strongest control arms available too.

 

[Doubeleive]

Good old Z71 with Rancho Shocks and specially tuned springs. It would stand to reason that they might use the strongest control arms available too.

yaa that's what I figured but I fail to see how the control arms would be inherently different

 

[Phantomman]

Hi William. How do you like the XFE? Does it really get better fuel economy?

Open your glovebox and look at the RPO Sheet on the inside door. Look for codes that begin with 6 and 7, these are your left and right shock codes for the front. From that we can extrapolate what the rears are.

Also let us know if you have G69 along with ZW7 too.

I get about 20 mpg hwy (19.5) if I run the A/C and about 18.5 mpg in town so I like it. Had to have the engine replaced at 115,000 mi and I've got the standard dash board cracks but all in all I like it. It just sits rear low because someone put some Rancho shocks on it that I don't think are correct.

The RPO shows 6CS and 7CN I have a GU4 and a G80 but no G69.

The dealership gave me GM part number 20833776 which is discontinued, they said their system showed 19158785 as a suitable replacement but when I tried to order them the GM website wouldn't let me because it said they weren't compatible.

 

[Phantomman]

I'm coming up with 20833776 for the rear shocks. ACDelco's number for this is 540-576. Summit Racing looks to have them.

I think the front are 20765171/540-460 but should check that against your RPO sheet (6CN, 6CS, 6RN and 7CN, 7CS, 7RN).

Thanks!! That matches what the dealership gave me.

 

[Doubeleive]

I get about 20 mpg hwy (19.5) if I run the A/C and about 18.5 mpg in town so I like it. Had to have the engine replaced at 115,000 mi and I've got the standard dash board cracks but all in all I like it. It just sits rear low because someone put some Rancho shocks on it that I don't think are correct.

The RPO shows 6CS and 7CN I have a GU4 and a G80 but no G69.

The dealership gave me GM part number 20833776 which is discontinued, they said their system showed 19158785 as a suitable replacement but when I tried to order them the GM website wouldn't let me because it said they weren't compatible.

rockauto has them for $30 I bet that's a way cheaper price too
https://www.rockauto.com/en/parts/acdelco,530387,shock+absorber,7556

 

[Phantomman]

I'm coming up with 20833776 for the rear shocks. ACDelco's number for this is 540-576. Summit Racing looks to have them.

I think the front are 20765171/540-460 but should check that against your RPO sheet (6CN, 6CS, 6RN and 7CN, 7CS, 7RN).

Ordered from Summit they won't be in till the end of March but at least they're ordered.

 

[Phantomman]

rockauto has them for $30 I bet that's a way cheaper price too
https://www.rockauto.com/en/parts/acdelco,530387,shock+absorber,7556

Thanks for finding that. The 540576 matches my dealer part number exactly so I ordered those from Summit. If I have an issue I'll use these as plan B.

 

[swathdiver]

yaa that's what I figured but I fail to see how the control arms would be inherently different

They used three different like forged aluminum, forged steel, cast iron and stamped steel. Mine are aluminum and so are the PPV/SSV and XFE.

 

[swathdiver]

I get about 20 mpg hwy (19.5) if I run the A/C and about 18.5 mpg in town so I like it. Had to have the engine replaced at 115,000 mi and I've got the standard dash board cracks but all in all I like it. It just sits rear low because someone put some Rancho shocks on it that I don't think are correct.

The RPO shows 6CS and 7CN I have a GU4 and a G80 but no G69.

The dealership gave me GM part number 20833776 which is discontinued, they said their system showed 19158785 as a suitable replacement but when I tried to order them the GM website wouldn't let me because it said they weren't compatible.

Thanks!! That matches what the dealership gave me.

Ordered from Summit they won't be in till the end of March but at least they're ordered.

Anytime! Did you once fly F-4s?

Been thinking about an XFE for my wife to replace our aging minivan. She's only onboard if it sits lower than mine and gets better fuel economy which I believed and have now confirmed, thanks!

Ranchos are certainly not correct! Check the spring part numbers too, make sure they didn't throw parts at it, causing it to sag. They were designed to sit lower though than a regular Tahoe, more like the PPVs and SSVs.

 

[BG1988]

Anytime! Did you once fly F-4s?

Been thinking about an XFE for my wife to replace our aging minivan. She's only onboard if it sits lower than mine and gets better fuel economy which I believed and have now confirmed, thanks!

Ranchos are certainly not correct! Check the spring part numbers too, make sure they didn't throw parts at it, causing it to sag. They were designed to sit lower though than a regular Tahoe, more like the PPVs and SSVs.

Yes the ride height is much lower= lower center of gravity= better control

you can see the ride height compared to a suburban ...

it has like a 3" drop

I get about 20 mpg hwy (19.5) if I run the A/C and about 18.5 mpg in town so I like it. Had to have the engine replaced at 115,000 mi and I've got the standard dash board cracks but all in all I like it. It just sits rear low because someone put some Rancho shocks on it that I don't think are correct.

The RPO shows 6CS and 7CN I have a GU4 and a G80 but no G69.

The dealership gave me GM part number 20833776 which is discontinued, they said their system showed 19158785 as a suitable replacement but when I tried to order them the GM website wouldn't let me because it said they weren't compatible.

you should get the larger air dam from a hybrid...

GM part # 15290959 it should improve it even more by 0.5 to 1mpg

with the hybird 19.5 My city /25.7MPG highway but it does have a 6.0L

I think if they would have put the 4.8l it would be even higher maybe looking at 24/30MPG

I had bought a XFE but the title had an issue so i returned it and got my money back I really really liked it too....

 

[kbuskill]

Yes the ride height is much lower= lower center of gravity= better control

you can see the ride height compared to a suburban ...

it has like a 3" drop



you should get the larger air dam from a hybrid...

GM part # 15290959 it should improve it even more by 0.5 to 1mpg

with the hybird 19.5 My city /25.7MPG highway but it does have a 6.0L

I think if they would have put the 4.8l it would be even higher maybe looking at 24/30MPG

I had bought a XFE but the title had an issue so i returned it and got my money back I really really liked it too....

View attachment 218533

That Burb on the left looks like it has a leveling kit installed on the front end.

It definitely looks higher than a stock 2wd.

 

[swathdiver]

Ordered from Summit they won't be in till the end of March but at least they're ordered.

How did everything work out?

 

[olliec420]

So I have an old 09 Yukon XFE, I understand they’re an inch lowered and have a different rear end. I just got new struts installed in the front and it feels like it’s jacked up. I bet they grabbed a regular 1500 front strut and not even knowing or thinking that it might be different. I assume the Tahoe PPV struts are the right one to use for this truck because of they are also lowered factory. Can anyone confirm this? I gotta have my evidence when I go back up there. From what it sounds like here, I’m correct.