Keeping coolant and transmission temps under control when towing in the summer heat

[mikeyss]

Are you guys running headers or stock manifold? If headers do you have them wrapped? What about your trans cooler lines?

ARH longtubes and mine are naked. They don't come close to anything that can burn up, I love the fitment. I don't even need protection for the spark plugs wires.

 

[Doubeleive]

How long do these transmissions average in miles before rebuild or replacement?

per the local shop they start seeing them come in around 120-140k I guess it really depends on how hard you beat on it, and I am referring to the 6l80's the TC is weak and takes out the pump, wears out the bell housing, stator.

 

[Geotrash]

How long do these transmissions average in miles before rebuild or replacement?

Depends on how they’re driven and maintained. I have 215K on the original 6L80E in my ‘07 Yukon XL Denali. AFM will also affect the life of them because as the system engages and disengages it puts extra strain on the lock-up clutch in the torque converter. When that goes, it will take the transmission with it.

 

[Tozan]

Depends on how they’re driven and maintained. I have 215K on the original 6L80E in my ‘07 Yukon XL Denali. AFM will also affect the life of them because as the system engages and disengages it puts extra strain on the lock-up clutch in the torque converter. When that goes, it will take the transmission with it.

I have just over 200K on mine I am thinking of rebuilding it as preventative maint. Looking at doing a rebuild with updated parts and replace bell housing, torque converter and rear main seal too.

 

[alpha_omega]

Personally I haven’t seen much over 200-250k before they need a rebuild or full replacement. It could be part in due to the previous owners.

 

[alpha_omega]

While you’re at it, put a new pan on the trans. One with a drain plug. B&M makes a nice one that’s deeper and has cooling fins to help with the fluid temps.

 

[alpha_omega]

Depends on how they’re driven and maintained. I have 215K on the original 6L80E in my ‘07 Yukon XL Denali. AFM will also affect the life of them because as the system engages and disengages it puts extra strain on the lock-up clutch in the torque converter. When that goes, it will take the transmission with it.

Did you do the AFM/DoD delete on both of your trucks?

 

[alpha_omega]

ARH longtubes and mine are naked. They don't come close to anything that can burn up, I love the fitment. I don't even need protection for the spark plugs wires.

Seriously? I figured at the minimum the plug wires would need to be protected. Usually it’s plug shields and wrapping the headers.
Is yours a 5.3l and is it 2WD/AWD or 4WD? There’s quite a difference in fitment and choice selection between the 5.3l and the 6.2l?

 

[alpha_omega]

per the local shop they start seeing them come in around 120-140k I guess it really depends on how hard you beat on it, and I am referring to the 6l80's the TC is weak and takes out the pump, wears out the bell housing, stator.

Is there a TC that’s recommended for replacement, or is better off sticking with another OEM since 100-200k is still a good number (unless you’re behind the wheel, in which case that “actual” mileage number is doubled to then reflect the “abused” mileage)?

 

[Doubeleive]

Is there a TC that’s recommended for replacement, or is better off sticking with another OEM since 100-200k is still a good number (unless you’re behind the wheel, in which case that “actual” mileage number is doubled to then reflect the “abused” mileage)?

a billet torque converter, mine was done with one from a local manufacture from the san jose, ca area, "saxco", there not a "brand name" company but are popular with the locals