I have searched the archives and can't find an anser to my question. Can a healthy F (maybe slightly modified) pull the FJ40 with 33's with stock gearing on the highway? I don't have a problem in low range off road now even with 33's. If I go to 35's I assume I will need diff gears. My engine is tired and needs to be rebuilt. I am considering a 350 swap, but I am not sure I want to undertake that mod. Thanks for any help here.