20V silvertop with stock 7AFE gearbox, Is that possible? Options

[onnaj]

Hello,

I'm able to buy a 4AGE 20V Silvertop for a nice price. I'm wondering though if it's possible to keep my own 7afe gearbox with it? Or wouldn't the gearbox last for long?

Thanks!

[onnaj]

Is the wiring difficult to do?

[Special_Edy]

Is the wiring difficult to do?

If you have to ask then probably yes. You would need to splice your current harness into the donor harness, so that all the ecu and engine wiring was from the 4age donor but everything from your headlights to your windshield wipers would need to remain 6gc. I would say you would have to have moderate-expert experience on electrical wiring and engine management to know what you were doing, and the splices cant be just crimped you'd probably want everything soldered and heat shrinked(not to mention making every wire the correct length).

Perhaps someone else has actually done the swap and can give you a better idea or an educated guess at how much it would cost to have a shop perform the labor for you.