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Dino Driver · 03-31-2011, 02:16 AM

I am now revisiting the 4L80 transmission. Although there is not a huge length difference, there is an overall size difference and I'm certain a 4L65 (which was origianlly behind this motor when it was in a 2003 Silverado SS) will be a better fit. From what I have gathered, the 4L70 would be even better. The 4L60, 65 and 70 all have the same dimensions but the 65 and 70 will not work where a 60 has operated because of different style of sensors.

03-31-2011, 02:16 AM	#9
Dino Driver Registered User Join Date: Mar 2011 Location: Portland, Oregon Posts: 107	Re: Advice wanted, LQ9 on a 64 1/2 ton frame I am now revisiting the 4L80 transmission. Although there is not a huge length difference, there is an overall size difference and I'm certain a 4L65 (which was origianlly behind this motor when it was in a 2003 Silverado SS) will be a better fit. From what I have gathered, the 4L70 would be even better. The 4L60, 65 and 70 all have the same dimensions but the 65 and 70 will not work where a 60 has operated because of different style of sensors. Attached Images