3 speed OD help 65 stepside

[j_lee223]

I need some . I found two 3 speed ODs a 4 and a 7 bolt. I dont know wich one is best. Whats the diferance ? 100$ each and both need to get over hauled they have been sitting out side what do you guys think

is it a saginaw with a BW or a muncie ????

Thanks for the help



Jusitn TX. CA.
USMC

[slorio]

J Lee 223:
The seven bolt has a synchronized first gear and is the later model transmission. The four bolt has an unsynchronized first and is more "correct" for our year of trucks. The deciding factor in my mind would be if I could check the governor and solenoid on each and buy the one that has these parts in working condition. The governor and solenoid are the two parts that are unique to these transmissions and are getting hard to find.

I hope this helps.
Regards,
Steve
New Orleans

PS I have the seven bolt mode.

[j_lee223]

Thanks Steve !!! Yes it does Im checking them out tomorrow and probably going with the 4 bolt just to keep it period correct. Do you know of any good complete kits out There to rebuild the Trany and OD ??? Is the 4 bolt a saginaw and the 7 a muncie ???


Ill take pics once I get it
Can't wait
Thanks again
Posted via Mobile Device

[slorio]

J Lee 223:
I am not aware of a rebuild kit for the overdrive tranny. The rebuild kits for the non overdrive version of this tranny (i.e. SM318 for four bolt) would likely have most of the parts you would need.
Regards,
Steve
New Orleans

[luvbowties]

Originally Posted by j_lee223

Thanks Steve !!! Yes it does Im checking them out tomorrow and probably going with the 4 bolt just to keep it period correct. Do you know of any good complete kits out There to rebuild the Trany and OD ??? Is the 4 bolt a saginaw and the 7 a muncie ???


Ill take pics once I get it
Can't wait
Thanks again
Posted via Mobile Device

Hi, jlee, you stated, "probably going with the 4 bolt just to keep it period correct". All else being equal (heck, even if I had to pay a few bucks more)I'd opt for the fully-synchronized one. It's next best thing to a 4-speed as far as drivability is concerned. Ex: when approaching a yield sign, you can shift into 1st gear while still going 10-15 mph; and when you see the way is clear, you can accelerate right on off without having to come to a complete stop to shift into 1st gear before taking off. There will be numerous scenarios where you'll be too slow for accelerating in 2nd and need to shift into 1st--you can not do that w/out completely stopping in the 'period-correct' tranny--yet you could in the fully-synchronized one.

Please believe me: when I (we) drove cars of the late 50's and into the mid 60's, we'd give $ in a hurry to upgrade to a fully-sync'd 3-speed--that's when 4-speeds were just too expensive and hard to even find. The fully-sync'd 3-speeds were just a welcome addition and such a pleasure to drive. Also made your car much more desirable when you finally decided to sell it, making it a good return on investment. Cannot prove this, but we always felt the fully-sync'd 3-speed trannies were more heavy-duty than the non-sync'd ones.

HTH,
Sam

[j_lee223]

Wow tons of great info thanks Sam I know the four boat looks like but I don't know what the seven bolt looks like O'Reilly someone think I know what it looks like I've kind of an idea does anyone have any pics of the seven bolt I just don't want to make a rookie move in by the wrong tranny
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Will the seven both accommodate a three on the tree I really don't want to get rid of that

[slorio]

J Lee 223:
Here's the seven bolt (not mine, however):

[j_lee223]

Ok yup that's the one I saw today I hesitated because I didn't know if it would work with the column I haveI got to do some research you guys are awesome
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