4.3 to. A 5.3 swap

Asked by Feb 04, 2017 at 08:57 PM about the 2012 GMC Sierra 1500 Work Truck Ext. Cab

Question type: General

Hey everybody was looking into doing a full drivetrain
swap for a 2012 GMC Sierra WT v6 unfortunately and
putting the 5.3 with the  matching transmission..... what
else would I need to worry about in regards to complete
the swap successfully. I k ow I need the motor
transmission which you can get the set already together
drop in ready but what else do I need.... would I require a
new harness? Computer? Anything helps other than
saying go buy a v8 truck which is not an option looking to
do the swap as a project with my wife

4 Answers

answered 7 months ago

I found a 2010 donor truck

Mark helpful

answered 7 months ago

That does help thank you very much

Mark helpful
76,915

answered 7 months ago

Having a donor truck is the only way to tackle such a swap. Good luck!

Mark helpful
18,685

answered 7 months ago

Then when you done sell all the parts not needed and get you money back. Craigslist, fleabay, ect.

Mark helpful

Your Answer

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