Purchased another period correct accessory for the Circuit Rider - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**70cst** · 03-12-2023, 10:35 PM

Always looking to add practical period correct accessories for my truck … Just purchased this early 70’s Sears Cruise Control. Next to install it.

**allchevy58** · 03-12-2023, 10:45 PM

Cool, that will be a nice added option.

toms68cst · 03-12-2023, 10:56 PM

Brings back memories. I installed several of these back in the day. The biggest challenge I recall is having enough vacuum to work the actuator. You need vacuum the most going up hill - which is when you don't have as much vacuum!

**ThreeQuarter** · 03-12-2023, 11:00 PM

Nice acquisition! By what means does this system monitor speed? I don’t see any devices that have speedometer cable connections.

For controlling speed, it looks like it uses vacuum with the bellows-looking servo to pull on the throttle?

**truckster** · 03-12-2023, 11:13 PM

Quote:

Originally Posted by toms68cst

Brings back memories. I installed several of these back in the day. The biggest challenge I recall is having enough vacuum to work the actuator. You need vacuum the most going up hill - which is when you don't have as much vacuum!

Would using a vacuum reservoir (like the one on the HVAC system) work?

Woody · 03-13-2023, 10:12 AM

I had one of these I installed on my '69 way back in the early 90's. It uses a magnet glued/cable tied to the front of the driveshaft with a pickup coil mounted on a bracket above it. Worked fine for me, but I removed later on.

Woody

Jeff M. · 03-13-2023, 10:17 AM

I bought one of those in the '70s for my 69. It still works! I recently picked up another Sears NOS off of Ebay for my daughter's 67 Camaro. Haven't installed it yet.

toms68cst · 03-13-2023, 11:23 PM

Quote:

Originally Posted by truckster

Would using a vacuum reservoir (like the one on the HVAC system) work?

I think a one of these would help. A couple of my brain cells are telling me that it was actually suggested in the installation instructions.

03-12-2023, 10:35 PM	#1
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,339	Purchased another period correct accessory for the Circuit Rider Always looking to add practical period correct accessories for my truck … Just purchased this early 70’s Sears Cruise Control. Next to install it. Attached Images __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

03-12-2023, 10:45 PM	#2
allchevy58 Senior Member Join Date: Aug 2011 Location: Reno, Nv. Posts: 1,424	Re: Purchased another period correct accessory for the Circuit Rider Cool, that will be a nice added option. __________________ 1927 Willy's Knight 24,000 original miles, 1958 Impala 283/Powerglide, 1964 C-30 383/4 speed, 1971 Monte Carlo 350/350, 1972 GMC K2500 350/350, 1976 Chev. K10 350/350, 2006 GMC Sierra 2500HD LBZ Duramax/Allison, 2006 Chev. Silverado K3500 LBZ Duramax/Allison

03-12-2023, 10:56 PM	#3
toms68cst Registered User Join Date: Jun 2000 Location: Bismarck, ND Posts: 4,277	Re: Purchased another period correct accessory for the Circuit Rider Brings back memories. I installed several of these back in the day. The biggest challenge I recall is having enough vacuum to work the actuator. You need vacuum the most going up hill - which is when you don't have as much vacuum! __________________ Unrestored 68 C-10 CST. Original 327. 4-Speed CH465. 50k or so miles. TREASURER, Drum Brake Club.

03-12-2023, 11:00 PM	#4
ThreeQuarter Senior Member Join Date: Jun 2000 Location: Texan in Iowa Posts: 2,521	Re: Purchased another period correct accessory for the Circuit Rider Nice acquisition! By what means does this system monitor speed? I don’t see any devices that have speedometer cable connections. For controlling speed, it looks like it uses vacuum with the bellows-looking servo to pull on the throttle? __________________ Ben '68 Chevy C10 Custom LWB 327/TH400 2nd owner '16 GMC Sierra 1500 SLE Dblcab 4wd 5.3

03-13-2023, 10:12 AM	#6
Woody Registered User Join Date: Feb 2000 Location: Georgetown, KY, USA Posts: 631	Re: Purchased another period correct accessory for the Circuit Rider I had one of these I installed on my '69 way back in the early 90's. It uses a magnet glued/cable tied to the front of the driveshaft with a pickup coil mounted on a bracket above it. Worked fine for me, but I removed later on. Woody

03-13-2023, 10:17 AM	#7
Jeff M. Registered User Join Date: Feb 2000 Location: Pixley, Ca. Posts: 484	Re: Purchased another period correct accessory for the Circuit Rider I bought one of those in the '70s for my 69. It still works! I recently picked up another Sears NOS off of Ebay for my daughter's 67 Camaro. Haven't installed it yet. __________________ 69 C-10 CST Short Fleet, Factory Air, BB427-400 Auto-2400 stall-tilt-cruise-Tach & Vac Gagues, 4/6 drop, power one piece side windows, Eaton posi.



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