Transmission temp.

[Taylor923]

I have a 2005 2500 Suburban with 9'' lift and 37" tires. When I pull a heavy load my tranny temp. is about 200. The owners manual said not let it get over 200. Is there anything I can do to lower the operating temp. I also have 3:73 gears.

[HALLETT BOY]

Get a bigger cooler !

[sigepmock]

With those big tires you definitely want a larger tranny cooler. You might consider a gear change too as this will help relieve the stress on the trans.
Call Mike L. at Inglewood Transmission Service
310 674 4400
He's a pro with the Chevy trannies and probably can set you up with a larger cooler that bolts in the stock location.
Good luck,
Chris

[Havasu Hangin']

200 is pretty normal.
With stock tires and the stock tranny cooler my temps went over 220 on hills. I put a B&M tranny cooler, Mag Hi-Tech pan, and Swepco fluid in...now it rarely gets to 200.
I found that I can lower my temps simply by keeping my foot out of it, though.
If you heat it up...change the fluid more often.
http://4x4trailhunters.com/pictures/...HECAT_Inc..jpg

[Taylor923]

Thanks guy's, I'm going to try the bigger cooler, cheeper than gears plus with a big block I wan't to keep the 3:73's or I won't even see 10mpg.

[sintax]

With those big tires you definitely want a larger tranny cooler. You might consider a gear change too as this will help relieve the stress on the trans.
Call Mike L. at Inglewood Transmission Service
310 674 4400
He's a pro with the Chevy trannies and probably can set you up with a larger cooler that bolts in the stock location.
Good luck,
Chris
I agree with you on that one. Mike L is the man when it comes to transmissions. He'll be installing a Suncoast IV in my Allison someday...just hope its not too soon

[Outnumbered]

200 is pretty normal.
With stock tires and the stock tranny cooler my temps went over 220 on hills. I put a B&M tranny cooler, Mag Hi-Tech pan, and Swepco fluid in...now it rarely gets to 200.
I found that I can lower my temps simply by keeping my foot out of it, though.
If you heat it up...change the fluid more often.
http://4x4trailhunters.com/pictures/...HECAT_Inc..jpg
Exactly.