Shep Stage 4 extreme crate transmission with Wavetrac rear diff and PRL billet rear diff cover for sale. Please see below link and add a core charge to your workings out. This has the Dodson Extreme gearset along with a humungous list of the best parts. Asking £18k and you can sell your current transmission.

ShepTrans Stage 4 Extreme Transmission Rebuild - Nissan GT-R R35 - ShepTrans

Too busy at home and work at the moment so cant do a build til next year. Lots of other new bits but wouldn’t bother selling unless the big ticket items sell. There is paperwork and I am sure Nathan and John would vouch for it all.