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Old 05-31-2017, 12:50 PM   #1
NASTY-LSX
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Want to sawp a 6L90e in my 86. What do I need to make it work??

I can pick up a 2014 6.0 vortec ls with a 6L90e trans complete. I have done swaps with ls engines and 4l60/65 e trans.. I know the 6L90 is totally different. Would I need an aftermarket paddle shifter?
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Old 05-31-2017, 09:06 PM   #2
Big Port Jimmy 6
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

No just did a 6l80E and used a column shifter. You would need paddles for tap up and down though.
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Old 05-31-2017, 10:10 PM   #3
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

Would you need to add a button for the tow/haul mode also?
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Old 05-31-2017, 11:51 PM   #4
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

Quote:
Originally Posted by smpoulin01 View Post
Would you need to add a button for the tow/haul mode also?
Good point. I did not think of that.. I wont need it so dont matter to me. But still a good point for others.



Big Port Jimmy 6, did you use a paddle shifter?

This is what it will be going in!!
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Old 06-01-2017, 10:14 PM   #5
Big Port Jimmy 6
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

Nope no paddles just the column shift. Was in a 56 GMC. LS3/6L80 Customer wasn't interested in manually shifting. Jay
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Old 06-02-2017, 06:41 AM   #6
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

Any firewall issues?
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Old 06-02-2017, 11:02 AM   #7
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

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Originally Posted by smpoulin01 View Post
Any firewall issues?
For what I been reading there are no mods or issues in 73/87..
plenty of clearance.
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Old 06-02-2017, 11:53 AM   #8
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Re: Want to sawp a 6L90e in my 86. What do I need to make it work??

That's good news! Please keep us updated on the swap as I am looking at doing the same from a 07.
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