Okay so i got new pedals however i cannot get off the old pedal on the crank side of the bike. I was able to get off the old one. Any ideas?

They are reverse threaded

Yeah i know. This one is just not moving at all.

Liquid Wrench or PB Blaster.

Tried WD 40. Still nothing

Do you mean drive side? Because that one _isn't_ reverse threaded.

Drive side: right handed thread
Non-drive side: left handed thread

You seem to know this, but just in case...

(Edit: Or does "crank side" mean non-drive side?)

No crank side mean drive side my bad.

Let someone else have a go (no, seriously). Failing that, I've found that a bench vise + breaker bar can be a fairly persuasive duo.

Also, are you using a pedal wrench, or are they the LOOK-style dealies with the hex wrench from the back (inside of crankarm)? If the latter, perhaps you are looking at it bass-ackwards. Just a thought....

Assuming it is a problem requiring lubricant:

The "WD" in WD 40 stands for Water Displacement. Great for cleaning wet road sludge out of chains, or an aid to scrub rust off of salt covered cassettes. As a lubricant though it leaves much to be desired.

Try PB Blaster as knowledgdropper suggested.

And make absolutely certain you grease the pedal threads when you put the new pedals in.

I'd use some kind of spray. If you're using a wrench use a pipe or something to get more leverage. I've had to use a rubber mallet and tap the end of wrench. You will want to be careful if you do this to not damage or strip the pedal threads.

"Back off"

I had pedals that had been on a bike for 18 years, wouldn't budge. PB blaster soaking in for 5 minutes, a little tapping with a hammer on the crank and they rolled right out.

I ended up going to the local bike shop. They used a pedal wrench (alot like mine) and a 2 foot breaker bar to finish the job.
Thanks all for the advice. Next time ill give PB a go.

I have used GIBBS. A propriatery, mysterious, pinkish spray in a can that supposedly does everything. Can't vouch for the everything, but it sure does penetrate and free up rusted, seize up things. Has a bigger following in the gun crowd than the cycling crowd locally.

Don't forget to put some anti-seize or grease on the new pair.