I recently purchased a 1997 SR5 2WD and love it but the throttle is so stiff. I removed the slack from the cables and also shot WD40. It helped a little but my neighbor a few doors down has a 2000 SR5 2WD and the throttle feels much easier than mine. It is night and day difference. I read in another post on this website that someone thought it was the spring that's is different than than the 1997's and older. If this is true. Is a 2000 model spring compatible with a 1997 or do you think it would make a difference if I just purchased a new throttle cable and housing? I love the 3rd generation except for the 1997 version of the gas pedal/spring.