auto clutch slipping

[mobstaopm]

I ve had heaps of work done on a stock SV8 auto VY. Indensky racing cam, duspeed OTR, extractors plus high flow cats/stainless, under gear pully, PWR trans cooler, 3.91 diff ratio and new lsd centre. It's auto and it sounds like the auto clutch is gone - it revs out and won' get to third. This is the second time this has happened to me
Would any any one know how much to change an auto to a manual trans on a gen3 VY

[VTPREDATOR]

haha sorry to hear this. same thing happened to me after i did the same amount of work to my engine. the box needs to be rebuilt stronger. cost me close to 3500 which included hi stall converter