Need Recommendation for 700R4 Vacuum Switch - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fatfords · 04-19-2005, 01:50 PM

Here is where I had it mounted on the truck that Phil bought. It was in the same general location on the Suburban that I "harvested" it from. I just used an existing hole in the firewall for mounting. The wires are not shown in this pic.
Good Luck!

**pjmoreland** · 04-19-2005, 03:02 PM

Thanks for the picture. I'll end up doing something like that on mine. Did it end up working well?

fatfords · 04-19-2005, 03:09 PM

Yes, it worked well. The only problem I had was I drive through about a mile of twisting road with hills and valleys-it would sometimes down shift a little sooner than I expected, but at least it didn't lug the motor as it did when I got it. The PO had installed a 5/16" ball above the TCC to make it lock as soon as it shifted into OD. That was no fun when driving through the same stretch of road.
Good Luck!

**pjmoreland** · 04-19-2005, 03:41 PM

Right now I have the TCC solenoid wired directly to my brake switch, so it locks as soon as it shifts into OD. It's a pain if I'm driving slow in a residential neighborhood because it really lugs the engine if I try to accelerate a little. I find myself stomping on the gas a lot to get it to shift into 3rd.

**pjmoreland** · 04-20-2005, 12:29 PM

The part number of the little delay valve is 14020691 for anybody who is interested.

04-19-2005, 01:50 PM	#26
fatfords Registered User Join Date: Sep 2002 Location: DFW, TX Posts: 350	Here is where I had it mounted on the truck that Phil bought. It was in the same general location on the Suburban that I "harvested" it from. I just used an existing hole in the firewall for mounting. The wires are not shown in this pic. Good Luck! Attached Images __________________ '56 F-100 (w/all GM stuff) Lookin' for another parts chaser! '05 GMC crew cab

04-19-2005, 03:09 PM	#28
fatfords Registered User Join Date: Sep 2002 Location: DFW, TX Posts: 350	Yes, it worked well. The only problem I had was I drive through about a mile of twisting road with hills and valleys-it would sometimes down shift a little sooner than I expected, but at least it didn't lug the motor as it did when I got it. The PO had installed a 5/16" ball above the TCC to make it lock as soon as it shifted into OD. That was no fun when driving through the same stretch of road. Good Luck! __________________ '56 F-100 (w/all GM stuff) Lookin' for another parts chaser! '05 GMC crew cab

04-19-2005, 03:02 PM	#27
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,982	Thanks for the picture. I'll end up doing something like that on mine. Did it end up working well?

04-19-2005, 03:41 PM	#29
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,982	Right now I have the TCC solenoid wired directly to my brake switch, so it locks as soon as it shifts into OD. It's a pain if I'm driving slow in a residential neighborhood because it really lugs the engine if I try to accelerate a little. I find myself stomping on the gas a lot to get it to shift into 3rd.

04-20-2005, 12:29 PM	#30
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,982	The part number of the little delay valve is 14020691 for anybody who is interested.



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