ls2 blazer

I have a 2008 trailblazer ss ls2 engine all wheel drive trans with harness i want to convert it to 2wd and put it in my tahoe but i was told i need a 2wd trans harness and computer for it to work properly because if i didnt it would still operate *** awd and it wouldnt burn any rubber which i want to do because it a street truck can anyone give me any info thanks.

1964SS

iTrader: (1)

You can remove the transfer case and swap the tailshaft and tail housing on the awd trans, but it's no easy task and not worth it to me. You would be better off selling off the awd drive train and picking up a 2wd transmission. The harness could be modified to work or you can buy a stand alone harness for engine and trans.

ls2 blazer

Ok thank u do u kno a place that reasonable for the harness

jcvett56

What year is the Tahoe that you are trying to put this in?

ls2 blazer

Its a 1992 2 door blazer sport

jcvett56

You will def need to purchase a standalone harness. If you still have the harness and computer from the engine you are swapping in then you can send them off to Speartech and get your harness reworked for a cheaper price than a new harness.

http://www.speartech.com/LSX_Wiring_...ork_s/1833.htm

ls2 blazer

Ok i will check them out thanks

brewster240

iTrader: (1)

you dont need to purchase a standalone harness and that harness doesnt care if its 2wd or awd or 4wd or 6 wd.

ls2 blazer

So i just need to change the trans.. i dont need to change the harness or brain? i was told if i didnt it wouldnt be able to burn rubber it would still run as if its awd

jcvett56

If you are swapping an engine from trailblazer SS LS2/4L60 or whatever into a 1992 Tahoe you will DEFINITELY have to alter your wiring thus purchasing a stand a lone harness... Evidently I don't get what your ultimate goal is here but several people change their transmissions from 4wd to 2wd when doing a swap. It's not uncommon

ls2 blazer

My goal is to have a 2wd trans its going to be a street/ strip truck that occassionally goes to burnout competition i was told with the all wheel drive harness and ecm it wouldnt not be able to burnout. Thanks for all the help.

Striker289

iTrader: (1)

The transfercase in a tbss is fully mechanical. The harness is the same as the 2wd. Just converted my ss to 2wd in January.

TipsyMcStagger

iTrader: (1)

Deleted my previous post to avoid confusion. 2008 TBSS LS2's have the 58x reluctor and use the E67 ECM. I'm not aware of any electrical connection to the transfer case and according to Striker289, there is none. There could be a difference in the ECM flash (operating system) between the 2wd and AWD - I really don't know. But anyone who has experience flashing the E67 can look through the stock OS database files and determine whether the flash is the same for 2wd and AWD.

Regardless, it's definitely doable to take a 2008 LS2 from an AWD vehicle and get it running properly 2wd.

Tipsy

ls2 blazer

Ok do u have any problems with it and can u do a power brake burnout or is there any power loss?

ls2 blazer

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Oh ok thanks