101stvet

so i found out about this site thru my volkswagon club seems alot of v-dubs guys are into toyotas also so here goes........

So my son-in-law is selling me a 95 toyota tacoma ,regular cab, 5spd , 4wd, 2.7 ltr for dirt cheap. Well i got it home and was going to do some maint stuff on it like oil change , tranny fluid change ,replace the squelling belts and so forth , well after doing all this thinking it's going to be great little truck to run around in since my other 3 toys are all down. i leave to head up to rampart range(local shooting range) to shoot the trash up there well i take it easy lettting her get up tp temp and what not, well i hit the hwy and mash the throttle in 2nd gear well she rolls up the rpm range great until about 2,800 rpm from there up till redline i have this god awful vibration?

so i went up to the range taking back roads anyway ,all the while trying to figur out what is causing this, so once i'm back home i start looking around. all the motor mounts look good there's nothing rubbing on anything and no sounds like that, so i have the wife seat in the cab and put it in gear with the transfer in neutral and hold it at 3,000rpm (this seems to be the worst in the range ) and i start crawling around underneath it looking for signs of something and i get nothing until i notice that when your looking at the tranny/rear driveshaft you can see them vibrating like crazy and you can feel it also.

so if ya guys got any ideas let me know
i'm going to bring a block of wood home from work and jack the rear of the tranny up and see what happens its to hard to tell if the rear mount is busted or not .

SoCalPaul

Check the U-joints. You can usually feel it by twisting the drive shaft back and forth. If they are tight, try greasing them, there may be some kind of a bind. Also if the drive shaft has been off, it may have been installed "out of phase".

R Gale

Sounds like a U-joint.....I'd just go strait to replacing it. It's not all that spendy if you take the section of shaft with the old joint in it and a new joint down to a shop and have them press in the new joint. A shop will charge you somewhere between $10 and $50 bucks to do it, which is well worth it, assuming you don't have a shop press of your own.

101stvet

i don't think it's a u-joint checked those out and they all look and feel good. i did put the transfer in nuetral and i get the vibration still so i'm thinking it's something inside the tranny/transfer case? i'm a mechanic for the army so i've come across broken u-joints, carrier bearings.... ect pretty often with the hummers and 5-tons . so since all the mounts look really good i'm thinking it's something internal, i'm going to it take down to a local toyota shop and have them check it out i got a busy week coming and don't have the time to mess with , which sucks means more money out of pocket
Also i don't feel the vibration in the steering but the clutch and the shifter vibrate like crazy.

SoCalPaul

Clutch or flywheel or of balance?

shancerlelby

pull the rear driveshaft and check the rear output on the transfer case, large 22? mm nut. I had it loosen on me and after replacing all u joints, drive axles and swapping tyres even i found that. something to check anyways.