I crawled under my 90 SR5 to see if I could drop the oil without lifting the truck. Sure enough I could if I could figure out how to reach the oil filter While under there I noticed it's easy to drop most of the fluids without a jack if I position the truck's engine compartment over a gully/dip in the yard

 

I did it through the driver side wheel well. I have long skinny arms so it was a little easier for me. its a little tough but you'll get it. I think i also did it from the top of the engine bay.

 

Pull the skidplate and you can get to the filter underneath the alternator. Put a rag underneath the filter to help keep the block clean. Thats how I did it on my 90 V6 4wd excab.

Hope that helps.
Robb

 

Yes, those suggestions will help. I have big fat mitts and there seems to be little room for them to access the oil filter. I'll try again tomorrow as I'd like to drop the oil ASAP.

 

12 gauge shotgun?