alright guys I've got my trans in and my 98 harness repin done along with my 0411 ecm with the 4l80 os installed. Now it is wiring time. I read on lt1swap.com about repining the trans plug from a 60-80 and attaching a vss plug to the ecm. http://lt1swap.com/4l60e_4l80e_harness.htm


I have also seen the adapter harness speartech sells http://www.speartech.com/product_p/60to80upgrade.htm



My question is could I repin my 98 trans plug and buy a vss sensor and add it to my ecm and save about $120. Repining the plug should be a cake walk compared to the ecm repin. Or sense the harness was repinned will it not function as stated on lt1swap.com???

 

Repin it and add the input speed sensor. Spend the $$ on pizza and cold drink.
It's actually pretty simple just take a bit of time.
Follow this guide.
Then move the 60 to 80 wires and add the ISS wires.

http://mrk-motorsports.com/pdf/1998%...1999%20PCM.pdf

 

I already had done the MRK repin I just didnot want to go repining the trans plug to find out it is different from the 99+ factory harness opposed to the 98 harness with new ecm pin locations