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Discussion Starter · #1 ·
trey88
Hello everyone, I'm new to the forum but not to Chevy... hopefully someone out there can give me a definitive answer for a fairly simple question... will an 4L80E transmission from a 1999, 3500 2wd be a direct replacement for the 4L70E that came stock in my 2008, 1500 6.0ltr. V-MAX 2wd??? I Have gotten like four answers from different sources and none of them sold me... Any help would be much appreciated...
 

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no..the 4l70 is same case as 60/65/70/75...NOT 80
 

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Discussion Starter · #4 · (Edited)
Yeah: that's Kind of what I figured... just having problems finding a 70 at a reasonable price... I guess Ill pull the 70 for rebuild and drop a used 60 in it for the time being... what year model's would be compatible???
 

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60e will work but might not handle the power as well like the 70...the tune might be different too, line pressure and shift points might be lil diff
 

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Discussion Starter · #6 ·
it won't be in it long just want to build the original trans to handle a bit more power (considering I shredded second gear last week) just going to be tough keeping my foot off it while it has a sixty... so any 60e from a 1999 to 2008 should work???
 
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