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Official ZF or auto trans swap thread for the 6.9?

Wondering if there was a good source or an officail thread of info out there.. Lsst time I read up on this I thought there was a balancing issue or something..
Just considering a better highway geared trans
Thanks so much
 

Fellro

Moderator
Staff member
When you do it, you can't reuse the 4 speed flywheel, so you have to go with a dual mass, or with the aftermarket solid that can tend to make noises at certain rpms, mainly idle or just off. That is the main issue, for the most part, as far as I understand, it is basically a bolt in swap.
 

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