Fourth gen dash
Thread Starter
Joined: Jan 2003
Posts: 949
Likes: 0
From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Fourth gen dash
Hey I have searched the boards and cant seam to find anything on it but has anyone been able to get a fourth gen climate control to work in a third gen? I only ask this because I want to do a forth gen dash swap and still want to keep my ac and heat. Thanks
Senior Member

Joined: Jul 1999
Posts: 700
Likes: 0
From: Pineville, NC US
Car: An '87 Italian Retard Out Cruisin'
Engine: LS1 install in progress
Transmission: 4L60e
Axle/Gears: 9 bolt
I just put in a 4thgen dash. I don't have all the wiring yet for the HVAC so I just used my old one for now so thats an option. You can see there is a space around it, but you can get a piece of sheet metal and make a plate to take up the space and paint it black. Thats what I was going to do but i plan on getting the rest of the wiring soon so Ill just keep it like it is for now. But yes, people have been able to get the 4thgen HVAC to work. There are a few posts out there with most of the info on how to do it.
Senior Member
iTrader: (19)
Joined: Oct 2003
Posts: 690
Likes: 0
From: DFW
Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
The only problem with the 4th gen climate control is where the hot cold cable hooks up. They are different so you will have to ENGINEER something. The vaccuum control head mounts up the same.
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