RMA

ok so my rear driveshafts rear u joint hits my gas tank when in really tuff spots .. is this normal ? what should i look for?.. i do know my gas tanks not loose or any thing like that .
i havent looked at the tranny mount yet .. just saw where the tanks flange is wore down and the u joint is scratched up ..


ill post pics this afternoon .

thanks.
..

blake.nemitz

if you have lift coils you need to drop your panhard bracket off the frame to make it level, i t could be puilling it into the tank if you have it lifted and not dropped the bracket

MaK92-4RnR

hes a 1st gen 4runner. so he definitely has leafs. I've never heard of the driveshaft hitting the gas tank though?

toyminator2000

The only reason I can think of is maybe if your rear spring bushings are so wore out that the whole rear end is allowed to sway from side to side.

RMA

my bad bro .. maks right its the 1988 4runner with the leafs

wel its actually the gas tank skid plate .. but yea me either

sound like you may be right .. i went and took some pics ..




so since ive never replaced them i guess thats a good place to start.

my truck also has a slight vibration now also .. its not constant and only at around 40mph and faster.. it vibrates for a few seconds maybe 5 -10 seconds then stops for about 2-5 seconds then vibrates 5-10 second and so on..

maybe the u joint i guess.

im gonna take the rear shaft out and drive the truck with the front one only see what happens.

and i guess its time to order some bushings..

AxleIke

That happened to me when I had leaves. It was due to the axle arcing when it flexes. Its not much, but the gas tank is close. It will still arc when really flexed, no matter what you do.

The bushings are a great first step. I'd replace both the fronts and the rears. Hopefully that will prevent it from hitting the tank, but I dunno. Mine still hit after i put in Downey springs with all new bushings and shackles.

RMA

Thanks . i did flex the heck out of the truck this weekend.

I'll go ahead and replace the bushings and just see what happens .they do look pretty worn.

i think im gonna raise the tank and its skid plate as much as possible also ..

Plumbrbob

pretty common problem in my world any guy I wheel with and gets twisted up had driveshaft rub on his gas tank skid....typicallly its the modified rigs with really flexxy springs...but you dont sound like your modified much....maybe your getting down and dirty with it more than others in a stocker..... mine rubbed with brand new 4" rear trail gear springs and shackles .....The fix for me I moved my gas tank

Tofer

sounds like a pod of orca whales.... happens to me now and then...

RMA

yea my suspension is nothing special.. since i dont have my spare tire under the truck any more .. i may look into putting a tank back where the spare was .. and removing the original one ..




i guesss this is pretty normal if your gonna wheel the truck a little on the hard side.

thanks .

Beaniam

I've got flexy longer than stock trailgear springs in the rear and I mash the hell out of my tank. With the dents on it from the driveshaft I wouldn't be surprised if it holds half a gallon less now. Unless I feel like mounting it in the bed or across the frame where the spare normally sits, I just deal with it.

xxxtreme22r

Zeb8806 has a similar problem on his 4runner on LC coils. I don't know why though. haha

blake.nemitz

it might be worth a shot to gert new bushings and snug them up

RMA

haha .. and im here worried about little scratches on the tanks skid plate..so i guess this is just normal or common
.. im really gonna look into putting a new tank at the rear ..and removing the oem one .


damn thats scary looking

i will do that .. thanks .

xxxtreme22r

Shoulda been there to see it. I thought for sure he was gonna roll a few times, but that thing never left all 4's. Scary part was hearing the driveshaft slap off the tank.