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11 members (RBs36, 2-Ton, Charles in CA, Wally / Montana, TUTS 59, Shaffer's1950, JW51, 46 Texaco, niobrarafun, MikeE, Ponchogl),
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Jul 21st, 2025 | | | | Joined: Aug 2007 Posts: 23 Apprentice | | Apprentice Joined: Aug 2007 Posts: 23 | I got my hands on a borg warner overdrive to go on my 54 , The part I am having trouble with is the transmission yoke . I am unable to locate one and dont know what is interchangable with this . It measures as 1 1/4 in diameter with 16 splines .
Thanks | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The yoke should be the same as the std SM318 will work. Do you still have the original driveshaft from the '54? It should work.
Bill Burmeister
| | | | | Joined: Aug 2007 Posts: 23 Apprentice | | Apprentice Joined: Aug 2007 Posts: 23 | The original drive shaft was a enclosed setup on my truck, I have a newer rearend open drive line i am installing just to get the overdrive , the new rearend I am not sure what it came out of origanally as a freind got it in a t bucket. but I will need a drive shaft before I am done .
thanks | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | 55 to about 66 yoke will work
Bill | | | | | Joined: Jan 2001 Posts: 1,410 ODSS President | | ODSS President Joined: Jan 2001 Posts: 1,410 | What ratio is your "open rear end that a friend had in his t-bucket"? Is your Overdrive shift cover a 4 bolt or a seven bolt? Either way the overdrive is .70 so in my case thats .70 X 3.90 rear end = 2.73 rear ~70 mph @ 2000 RPM. You want to have a good power band for the terrain in which you will do most of your driving, in my case the piedmont foothills. Here's some information you may find useful. Specifically, the ENGINE RPM CALCULATOR. You can't change the overdrive so what you can change in your case is the tire height and rear end. PS, you're going to love that overdrive man!
~ Cosmo
1949 Chevy Half Ton
Rocinante, like Don Quixote, he is awkward, past his prime, and engaged in a task beyond his capacities.
"...my good horse Rocinante, mine eternal and inseparable companion in all my journeys and courses." ...Don Quixote, Cervantes
"If you come to a fork in the road, take it."...Yogi Berra
"Rudeness is the weak man's imitation of strength." ...Eric Hoffer
| | | | | Joined: Apr 2005 Posts: 2,066 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,066 | You can get a new yoke from Powertrain Specialties in Garden Grove, CA.
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
| | | | | Joined: Aug 2007 Posts: 23 Apprentice | | Apprentice Joined: Aug 2007 Posts: 23 | The rearend is a 4.11 non posi , I grabbed this knowing I could cruise at 2000-2300 at 65 mph . the 235 is pretty well warmed over I have milled the head to boost the compression and put a clifford cam in it, fenton headers and set of dual holly weber carbs on offy manifold . with that overdrive it will go faster than i want to go on the stock suspension . this trans has a 4 bolt side cover by the way | | |
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