scottv442

too lazy to get my shop manual so i thought someone might have the quick answer here.

could a 1970 olds 442 w30 be ordered with 3.91 gears, automatic tranny and a/c??

oldsmobiledave

No to 3.91 and a/c.

A/C cars got 3.23 gears but there are a few documented 3.42 geared a/c cars.

Your newly acquired car has 3.42s which is surprising to me. Most that I have seen came with 3.91s when equiped with the T400 and no a/c.

Dave

olds 307 and 403

I believe no is the answer is no.

joe_padavano

According to all factory literature, the answer is definitely no.

The base rear axle ratio with the W-30 option was 3.42 with either four speed or TH400. Both the Powertrain Booklet and the SPECS booklet show 3.23 as the standard and only rear axle ratio with C60, however I am also aware of the documented 3.42 cars. I've seen some early literature that calls out the 3.42 ratio with C60, so this may have been a change during the model year. The reality is that the difference in engine RPMs at a given speed from 3.23 to 3.42 is only about 6% - not really enough of a difference to matter.

scottv442

thanks, thought so, but wanted to be clear.

jensenracing77

Sorry for the hijack but how was this documented? I have heard this several times over the past 5 years here on CO but I have yet to get anyone to show it to me. Not even sure what document it would be found on? Window sticker maybe?