Transmission / gearbox exchange 6 to 8 speed

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Jan 8, 2020 | 01:28 PM

Redmen

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Joined: Jan 2019

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Transmission / gearbox exchange 6 to 8 speed

Hi Jag fans,
Is there any experience of exchanging / swapping the gearbox from the 6 speed (ZF 6HP26) to the 8 speed version (8HP70) in a 2011 X351?

Jan 8, 2020 | 04:01 PM

Thermo

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From: Great Mills, MD

Redmen, if you are going to do this, you will need to swap not only the tranny, but a wiring harness and also get a new tranny computer. So, not an easy, "just swap this" mod. Can it be done. Sure. Not sure the cost is going to outweigh the benefits.