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No SS for a week :(


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as i recall, there isn't a vehicle gm makes with the 4L65E which has a 4HI mode.

I installed a Finishline Level 4 transmission in an 03 Escalade EXT. The stock 4L65E was donated to my Z71 which has 4hi. With the extra clutches and 5 pinion planetary in the 65E, it hold up pretty well. I'm sure some of you will blow out the tranny, but its still better than the old 4L60.

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i certainly agree, the 4L65E is much beefier. as for rossler, as i recall it was their 4L60E trans. that was in the lingenfelter corvette that went 8.95. if i recall correctly, they also do the upgrades for LPE.

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