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#1 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Is anyone running a Saginaw 3 speed manual with overdrive? Let me know what you think about it. Also what motor and rear-end gears you have.
A guy has the whole setup including wiring harness out of a 1967. I was thinking about replacing my SM420 4 speed with the OD unit. I have 3:73 rear gears with a 283. I don't have a tach but I would only drive about 60 mph or the engine would scream.
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#2 |
Registered User
Join Date: Nov 2013
Location: South jersey 51st state
Posts: 138
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Re: Saginaw 3 Speed Manual W/OD
I have 70 short step. 400 small block 3 spd over drive. 3:73 rear. Cruises at 26-2800 rpm. Going to change rear gears I think soon to 342. Trucks been on roads for 20+ yrs. but going to be doing more distance driving so lowering gears. Otherwise it is ok local but not that great with od an 3:73. Depends on what your plans are . Gas was around 1.50 I guess when it was a daily driver. Eats to much gas now at 3.+ in a gallon of fuel
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#3 |
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Location: Mt Airy, MD
Posts: 85,858
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Re: Saginaw 3 Speed Manual W/OD
My experience with these Saginaw O/Ds is with putting one in a friend's little '54 pickup. Truck has stock running gear. He didn't like the freewheel nature of the overdrive when he let off. She seemed to speed up. We pulled that,put a full-synchro '72 truck 3spd in along with the 3.08 rear from the same truck and that '54 gets on down the road just fine now.
I dig those 3spd/overdrive set-ups,though. I had a '61 Studebaker SWB with one behind the 259 V8. I remember really liking that set-up.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#4 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Does anyone know what gearing the OD is?
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#5 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
I found info about a 67 Chevelle and it is 0.700
So here is my current setup 283 V8 3.73 rearend gears 28" tall tires SM420 ..................4th gear 1.00 at 70 MPH gives you 3133 RPM (current setup) Saginaw 3 speed W/OD gear 0.70 at 70 MPH gives you 2193 RPM That gives you 30% OD Now I need to find info to confirm the OD gearing.
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#6 |
Registered User
Join Date: Aug 2009
Location: Australia
Posts: 275
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Re: Saginaw 3 Speed Manual W/OD
I believe it's:
1st: 3.09 2nd: 1.67 3rd: 1.0 4th/OD: 0.73 Fairly certain the ratios are the same as a 700R4. |
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#7 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Saginaw 3 Speed Manual W/OD
I'm sure I have posted this before but here goes again.
Might want to read through a thread we ran not too long ago. http://67-72chevytrucks.com/vboard/s...d.php?t=624630
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#8 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Thanks for the help guys. I'll let you know if I end up buying they tranny.
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#9 |
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Join Date: Mar 2012
Location: Boulder, CO
Posts: 350
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Re: Saginaw 3 Speed Manual W/OD
I had seriously contemplated running a 3 speed w/ OD, but decided to run a T5. Still putting the truck together, but it made sense to me- the trucks getting other mods as well.
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If 'that which does not kill me, makes me stronger', then I should be Superman by now! |
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#10 |
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Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,561
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Re: Saginaw 3 Speed Manual W/OD
I have been looking for one for a while. Apparently you can put the overdrive unit on a Saginaw 4 speed. That's what I have in my 2wd Blazer. So if you don't get it I may want it...Just sayin.
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#11 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Yeah I looked into the T5's, even tried to buy one.
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#12 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Well the guy hasn't returned my emails so not sure whats going on. Maybe he sold it .......
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#13 |
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Location: Mt Airy, MD
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Re: Saginaw 3 Speed Manual W/OD
Good luck on it. I wondered why this o/d wouldn't work on a Sag 4spd. I have one. If they were easier to get your hands on I'd consider going that route
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#14 |
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Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,561
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Re: Saginaw 3 Speed Manual W/OD
Supposedly they do work on Saginaw four speeds. You have to do a mod or two but they are not that hard.
http://www.chevytrucks.org/tech/overdrive.htm
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#15 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#16 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Well the 3 speed OD transmission I wanted to buy has sold so..... I guess you snooze you loose
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#17 |
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Re: Saginaw 3 Speed Manual W/OD
Yeah,I wish I could just buy,then figure out if I can use it of if it will suite my needs. Actually,that used to be my method. I never bought a part I regretted,whether I used it or not.
Thanks x2 on both links. You don't want that 4spd set-up? I'd love to go for it but my accountant says I can't play. I'm stubborn and I love old school stuff,but starting to consider a T-5 and just sell my 4spds. Ideally,the plan is to use the M22 with the 3.42 rear for now then,when I could afford it,fit a Gear Vendors up. My thinking is 3.42s are as tall as I'll go and with o/d not be too tall. If I didn't like it I'd have a bolt-in 3.42 67-72 12-bolt to sell and swap-in a 3.73 or 4.10 rear. But dang! I'm not rich and between that M22 and Gear Vendors I'd have thousands of dollars worth of stuff to do what a Junkyard T-5 can do. That money would go a long way towards doing the truck
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#18 |
Registered User
Join Date: Jun 2011
Location: Marion, NC
Posts: 851
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Re: Saginaw 3 Speed Manual W/OD
Just curious how much they were asking for the 3 speed OD trans? I've got one that I'm going to be using and have almost all the parts to build another complete one.
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#19 | |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Quote:
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#20 | |
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Join Date: Jun 2011
Location: Marion, NC
Posts: 851
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Re: Saginaw 3 Speed Manual W/OD
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#21 | |
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Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
Quote:
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#22 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: Saginaw 3 Speed Manual W/OD
The guy told me yesterday that it sold last week so he had it listed for 28 days. I seen the listing the first day but I just dragged my feet to long.
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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