4L60E Build Help - Advice

Gpcalero

Cuz Racecar
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Sep 23, 2013
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So I am building a 4L60E for a truck and would like some advice on any additional parts that I am missing or I should get. I'm putting together the parts for my tranny guy to build and would like some feedback.

AWD truck that is my daily driver that also tows the racecar on track days. Can't put in a 4L80 or 6L80 unfortunately so this trans is going to be built.

Parts that I have purchased so far... basically everything off of the Sonnax level 3 build list lol.
I know I need clutches, but not sure which ones to get. I have also heard that the 29 element Borg Warner sprag is a must. Something about a 13 vane pump? What else should I get? Any feedback?
 

Junior00

Hurter Of Delicate Vaginas
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GPZ clutches and thick steels. The 2.84 will definitely make the 1-2 drop much nicer.
 

Junior00

Hurter Of Delicate Vaginas
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There is an extra wide 29 element available, but I would at least put the regular dual cage 29 element in. No idea on the pump, I’ve heard different things over the years from them being equal but the 13 being quieter and developed specifically for the lockup strategy of the 60e. I believe there is a spring and something else needed for high rpm use but I would contact Sonnax or someone more knowledgeable than I am.
 

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