67-70 TH400 Kickdown Harness Firewall Hole Location - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**pjmoreland** · 08-24-2020, 06:33 PM

Does anyone have a photo that shows the stock location on the firewall where the TH400 kickdown harness passes through on a 67-70 truck?

My '68 has a TH400 that the PO installed, but he did not install a kickdown switch. I've purchased a 67-70 kickdown harness from GMCPauls, along with a B&M switch that I will mount to the TH350-style kickdown bracket currently on my engine. I will have to drill a hole in the firewall, and I'd like to put it in the stock location.

I searched through many threads about TH400 kickdown switches, and the closest I came to a photo was in this post, although it was a bit vague.

https://67-72chevytrucks.com/vboard/...firewall+th400

08-24-2020, 06:33 PM	#1
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,315	67-70 TH400 Kickdown Harness Firewall Hole Location Does anyone have a photo that shows the stock location on the firewall where the TH400 kickdown harness passes through on a 67-70 truck? My '68 has a TH400 that the PO installed, but he did not install a kickdown switch. I've purchased a 67-70 kickdown harness from GMCPauls, along with a B&M switch that I will mount to the TH350-style kickdown bracket currently on my engine. I will have to drill a hole in the firewall, and I'd like to put it in the stock location. I searched through many threads about TH400 kickdown switches, and the closest I came to a photo was in this post, although it was a bit vague. https://67-72chevytrucks.com/vboard/...firewall+th400 Last edited by pjmoreland; 08-24-2020 at 06:35 PM. Reason: Added detail



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