I am currently thinking about doing a transmission swap to help the car run better at higher speeds. What transmissions would be good for this and possibly with overdrive? I would like to know my options before taking action. Thanks!

 

2004R for sure. Will bolt in place of your jetaway no problemo!

But....depending on your current rear axle ratio you may need a gear swap as well.

You might be better off with a T350 & a tall rear tire....way cheaper in the short term.

 

Teriffic! Thanks so much for the help!

 

Any specific years? If not what cars could I get one from?

 

Best source from an Olds is a 200R4 is an 85-87 442. They make great cores & come with a factory 2400 stall converter.

A Turbo T or GN sourced one is also good.

The 2004R experts will likley chime in & state that the absolute best have a certain code & come from a Monte SS....and that is true but I am betting you wont be putting a ton of power thru it so you do not have to have a bullet proof trans.

No matter what you 2004R you start with you will spend a bunch on it to make it live behind a healthy small block & you will have to hook up the cables to make it shift & lock up the converter & you will need a new shifter. All in all you will empty your wallet & time consuming.

I still believe a well built T350 & a 27" tire out back will give you a nice ride over the 2 speed trans at way less money invested. You will need to drive a lot of miles to earn back the money that the OD trans will cost.

 

Yeah, But no offence I don;t want to but 26"s on my classic car that and I have original rally wheels so I don't want to give those but by any means. The 700r4 wont work on this engine? I was told the 350 and 330 bell housing is the same.

 

A 27" tall TIRE...the tire! not the Rim!

FYI a 255 60 15 is 27" tall.

No idea where you got a 26" rim from. Read it again.

7004R has that nasty drop from 1st gear to second ....yuck. Pus you need an adapter to bolt it to an Olds as it has a Chevy only bolt patten.

 

hahah okay. Tires are not my strong hold. I'm a body person. haha I'm just trying to find an easy transmission to get a hold of since I will most likely have to end up pulling from a junk yard and rebuilding and I want to drive my car again!

 

200-4R is the only way to go, but don't waste your time trying to find a 442 or GN unit. Just spend the money and get one properly built for your application. Your stock driveshaft will work fine, but you will need to move the trans crossmember back and drill new holes for it (the 64-66 cars didn't have a TH400 option). If you have a convertible or boxed frame you will need to weld extensions to the crossmember tabs on the inner wall of the frame (which is exactly what the factory did for the 1967 cars). Due to the relocated crossmember you will also need to change the front and intermediate e-brake cables. Use the cables from a 1967 442 with the TH400. Your stock shifter will work but naturally you won't be able to manually access second or first unless you change to a four speed shifter. You will not need to change the rear axle unless you want to. Many of the 1980s 307 cars came with a 200-4r and 2.41 rear axle.

 

The 200R4 is good in stock forum to 255-260 ft lbs of torque. The 307 in the 80's put out around 255. It can be built to stand up to 400,500,600 HP. I've even seen a guy online claiming that a 200r4 can be built to 1000 hp.

That's nice and all, but it's torque that breaks things, not horsepower.

There is a place outside New Orelans that builds 200's for GN's. I would start there

 

The car its self is a 1967 but the 330 I believe is a high compression 64-66. Apparently the 1 on it makes it a 1965? Either way since the car is a 67 would I still have to change out cables and drill new holes? The car is an automatic so will using 442 cables work? If this is the case is it possible to just switch over a 80s tranny into my 67?

 

Im not really worried about torque as the car really isnt going to have any crazy performance changes and its just going to be a daily driver. And Im just looking to find one in a junk yard and rebuild my self.

 

OK. However, you have a motor that has 360 ft lbs. You might not be looking for crazy performance out of it, but 360 is higher than 250. JMO

Let me know how that rebuild goes. I wouldn't mind tackling a job like that myself

 

Okay. lol not good with this kinda stuff. We have the engine out and tore down. Not a pretty sight by no means! Tons of junk built up in the engine the rods were pretty much powering through all of it. Timing chain has started to break making it much looser than it was supposed to. So have to get that replaced and also changing out the cam for the new thuper by com cams. Just waiting to do a CC measure on the heads and new valve guides and seats and get the engine back from being dunked. I will post pics of all this and what happened to up date everyone!

 

The frame will have the holes for the relocated crossmember, but because of moving the crossmember you will need the new e-brake cables. Yes, the 1967 442 cables (for a TH400 application) will work fine.

 

It's not a hard swap and most things can be made to work including the ebrake cables. You may need a different shifter depending on whether yours is a floor shift or not.
I'd rebuild any tranny you come up with or it won't last long. https://classicoldsmobile.com/forums...5-cutlass.html this is the write up I did on the swap, most of what I did applies to your car.

 

Its an automatic on the column.