Hey guys wondering if somebody could help me out . I recently aquired a 1970 olds sx convertible from a junkyard that was hours from being crushed the car looks complete has the 455 in it but couldn't see the rear end did those cars all come with posi trac or was that an option in those cars as well?any info would be appreciated . Thanks

 

The early 2bbl cars came with 2.56 gears. The later 4bbl cars came with 3.08 gears. Other ratios were optional. Posi was not standard but was optional.

 

thanks for the reply i cant seem to decipher this vin code 342670e112940

 

ive done some checking and have it figured out some of the stuff im reading about these sx models makes it sound like a real good find

 

Post a pic of the data plate under the hood above the power brake booster...can be decoded from there.

 

Will do thanks

 

Could the SX be assembled in any plant besides Lansing?

Your VIN decodes as

342670E112940
Year:1970
Division:Oldsmobile
Series:Cutlass Supreme
Body:2dr Convertible
Plant:Linden, New Jersey
Serial Number:112940

http://www.v8cars.hu/oldsvin/decode.php

 

please post pix

 

Yes - SXes were built in Lansing, Fremont, Arlington and Linden.

Only 793 SX convertibles were built in 1970, so that's a very nice find.

Please see sx455.com for the registry there.

Terry

 

Thanks for the info Terry

Yes devileyejedi check out the registry and see if it is listed. There is a two letter code on the rear end. Look under the driver's side axle housing and that will tell us the original ratio and whether or not it is a posi.

 

saving a 70 SX convertible from being crushed is pretty awesome. Great find. Definitely post pictures when you get a chance.

 

I got one pic if I knew how to post it . I got into the car a little deeper today not sure if it can be saved floors and trunk are rotted pretty bad and can't get a look at the frame yet did get the hood open it looks like it has the touring package 455 2 bbl does have duel exhaust but looks like someone replaced the number with a non cutout version . Didn't see a tag on the differential cover maybe could salvage some parts

 

Yes.

Dead, here's a primer on the SX, available free of charge at Wild About Cars:
http://wildaboutcarsonline.com/cgi-b...aldisplayed=50

Wild About Cars. http://wildaboutcars.com. An information supersource, especially Oldsmobile. More Olds content than anywhere else on the internet and continuing to grow.
You'll find Chassis Service Manuals, Product Information Manuals (AKA Assembly Manuals), Inspector's Manuals, and other documents that will contain this and much much more.
Dealer Brochures, magazine ads and articles, and the Automotive History Preservation Society library growing daily.
Free to join, free to learn.

 

if its a 8.3 3.08 or 3.23 posi and you want to part it...let me know

 

Before you part it and cut it up give someone a chance to purchase it whole who may want to tackle a large project. New York (Saratoga) rust or Arizona rust? You'll be able to re-coupe what ever it is you paid for it selling it whole.

Snap some decent pics of the trouble spots such as the firewall cowl area under the wiper stainless, dash where it meets the windshield, the all important vert frame. Floors and trunk pans can be grafted in. If the frame and firewall and inner body structures are not totally rotted it can most likely be saved and it should be. Generally we here can tell if its savable or crush-able with decent pictures.

 

It's like a 442-light... factory BB will have many parts worth saving'
fender braces
exhaust manifolds
stuff like that
Did it have the Dual Gate "His & Hers" shifter? I assume it's auto trans. But, you never know.

ANY amount of rust CAN be fixed.... with time and money.
Thanks for saving it.

 

 

Any updates?.....rear end

 

I will definitely take lots of pics and give someone the opportunity to restore it I would love to see that olds rolling down the road once again thanks for replying

 

I haven't checked the rear end thoroughly but it is a twelve bolt but no tag on it

 

What is an 8.3 rear end?

 

type ''o''

 

Ring gear....

 

I live close to you - in Delmar by Albany and would be glad to take a look at it for you. I just restored a 70 SX Conv which started out sounding like yours - no floors or trunk, bad quarters, etc. As long as frame is solid, anything can be done if you are patient and do a lot yourself. I did most welding/sheetmetal myself other than actually painting it, so my labor was free.

Also curious, I have been to every junkyard (I thought) in the area over the last 25 years and never saw an SX Convertible. Where did you find it?

PM if you want to discuss your car or have me take a look at it for you, or just talk Oldsmobile.

Thanks, Pete

 

any updates