I find they operate just fine when simplified in some cases. Just use the governor and wire it through either a manual switch or one under pedal or micro on throttle linkage for auto pass gear. Use a bosch 5 pin standard 30a relay to throw the solenoid. I love mine. I have a manual pass gear on mine but with the v8 i never have to really use it. It auto downshifts from governor under like 25mph anyways.
Mr Masseyman My first 53 3100 had a57 car rear axle,51 car 5 lug front hubs,used a tri-5 overdrive with a homemade welded in the middle driveshaft. Ran the rheels off of that one.Had my kickdown switch on the dash so you didn't have to open 2 four barrels to downshift ! I later learned that if the driveshaft is stralght it is balanced.Now you might fine tune it but in our 3100 trucks probably fine !! Have made several since that. We did balance some with a strobe light wheel balancer and hose clamps.
fixite7, There are some original Delco relays available on ebay. A 55/56 that uses the ring terminals for about $175 and a 57 up that uses spade terminals for about $120. I use the Bosch type relays in the wiring kits that I provide with rebuilt overdrive units. They work fine and most people don't want to spend that much for a relay. Similar story with KD switches, the Ford switches are reproduced and are about $30, NOS Delco switches are $200. Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes 1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes 2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans 1947 Willys CJ2A w/F-Head engine
To the OP, check this out, it's a PDF download.BW OD [websearch.com] https://www.websearch.com/url?q=http://www.potomacbird.com/pctc/Public_Documents/bwwiring.pdf&sa=U&ved=2ahUKEwiJ_5e0xqPxAhWOt54KHbATDCcQFjABegQICxAB&usg=AOvVaw2bQMnK2vpR-hicGvyMfpdG
This is how I have my T85/R10 set up in my 49 3600. It works awesome!! I have full control of how and when it shifts, or I can let it just do it's thing
Last edited by Southtowns27; Sat Jun 19 2021 11:09 AM.
49 Chevy 3600 48 International KB-1 Service Truck 55 Willys CJ5 - Chevy 331 powered 26 Model T Roadster Rat Rod 70 Tucker Sno-Cat 442-A 96 Dodge 3500 Cummins dually flatbed x-cab 4x4 06 Jeep Wrangler LJ rock crawler If you can't fix it with a hammer, it's an electrical problem