quick transmission ?

[pugads650]

does the transmission in the 2003 h2 differ from the transmissions in the 2004-2007 h2s.

i searched and couldnt find anything.




john

[Planohummer]

each year is a different part number. they bolt up the same but i'd guess that calibrations are different and there are probably some tweaks in each successive year.

[pdsq99f4]

I'm pretty sure they're all the same. The calibration is in the pcm anyway, not the transmission.

[pugads650]

hmm yeah just curious because i heard that the 2004-2007 h2 got the beefier 4l80e and not the 4l65e in 2003.


becuase one of my buddies told me stay away from the 2003 cause of the weak transmissions.

[[__--MUD--__]]

None came factory w/ 4l80's, all came w/ car trannies.

[HummerMann]

The 4L65 E is a GM truck transmission. The only car it was ever used in was the GTO and Saab.

From the GM Tech Site


Hydra-Matic 4L60-E/4L65-E 2003-2006 year models

Type: four speed rear-wheel-drive, electronically controlled, automatic
overdrive transmission with torque converter clutch.
Engine Range: 2.8L-6.0L
Assembly Site: Toledo, Ohio
Applications: Chevrolet Colorado, Trailblazer, Silverado, Tahoe, Avalanche, Suburban,
Cadillac Escalade, Yukon, Yukon XL, Canyon, Envoy Denali, H2, H2 SUT, H3; Pontiac GTO; Saab 9-7x
GTO, Escalade, and H2 have heavy duty torque converters stamped HD.
Denali, Tahoe, Avalanche, Suburban, Escalade, GTO, H3 and H2 have heavy duty valve body 8756-E .

[IRA51]

you can rebuild your 4L65/60 so it can take higher horsepower and towing . a good transmission shop can set you up for just under $2300.00 installed with a transgo kit and hd parts kit a new hp torque converter and a cooler .
the trick is finding an honest trans shop that knows what they are doing . a stock rebuild with converter runs about $1600.00. FYI a stock trans shoul go at least 100000 miles if serviced proerly . a trans cooler should always be added. if your in Calli get Mike at Inglewood transmission to do your trans ,he is the man for HP/Tow transmissions.:fdance:

[o2man98]

The 4L65 E is a GM truck transmission. The only car it was ever used in was the GTO and Saab.

From the GM Tech Site


Hydra-Matic 4L60-E/4L65-E 2003-2006 year models

Type: four speed rear-wheel-drive, electronically controlled, automatic
overdrive transmission with torque converter clutch.
Engine Range: 2.8L-6.0L
Assembly Site: Toledo, Ohio
Applications: Chevrolet Colorado, Trailblazer, Silverado, Tahoe, Avalanche, Suburban,
Cadillac Escalade, Yukon, Yukon XL, Canyon, Envoy Denali, H2, H2 SUT, H3; Pontiac GTO; Saab 9-7x
GTO, Escalade, and H2 have heavy duty torque converters stamped HD.
Denali, Tahoe, Avalanche, Suburban, Escalade, GTO, H3 and H2 have heavy duty valve body 8756-E .

That Saab 97x is an SUV and is the same as the Trailblazer, Envoy, and Bravada.