vibration at 60mph and up
 

hey whats up you guys know that i recently snaped my drive shaft, so now is

the real question, with the old shaft i had a vibration, it was the drive shaft. so i

changed the drive shaft with Z1 one piece driveshaft. now when the one piece

snaped i had a vibration that continued to get worse from 75 and up when i hit

135 mph it snaped ,Z1 said that only if it is under stress it would snap,but

would snap at the end where the welds are. well mine didnt snap at the weld it

snaped in the middle, now since then i put new shaft,trans,i got subfram

spacers new rotors tension rods, stuff that would cause a vibration. now that

my car is runing good i was crusing at 65 and i noticed the same vibration at 65

up to 80 but5 i didnt go any fast because i dont want that to happen again.

now what are some thing in hte rear end that could cause a drive shaft to snap?

what item in rear end that could cause a vibation that could poteionaly break

my driveshaft? what items are know to go bad to cause vibration? i no my wheel

bearing are good i jacked cvar up and shook all the tires, no movement i got

new rotors so theres no warped rotors,i have new driveshaft and trans so theres

no drivetran vibation , but the funny thing is that there still in a drive tran

vibation from what it sounds like(where its coming from) i noticed that when i

get wheel hop my shifter goes crazy i have new noltec motor mounts and trans

mount, this is agravating. what could this vibartion come from andwhy would it

cause a drive shaft to snap, from my experiance from the first shaft snaping

makes me feel its doing the same thing i dont want this to happen again so

please help and please dont make comment about my other threads bs

im looking for sapport not critsisum so please help thanks guys

get your tires balanced.

i got new tires they have bin balanced

Have it done again. Hell, do a full allignment. I've never seen problems with the rear ends or the axle shafts in these cars, so I don't think it's that.

what do you think of solid diff bushings and solid subframe bushing, can they cause anything to break because there solid? now what if i put solid diff bushings and good urthane subframe bushings with subframe collors i was thinknig maybe the bushings are shot cause alot of flex , making vibration my car has 167,000 oringinal miles

I don't think the bushings would cause the vibration you're describing.

if u have aftermarket rims and spacers, make sure the spacers are centered.

well when i gas the car it has a lot of play in drive tran when i hit the gas abd let go and hit it again u can feel there a second b4 the torque goes to the wheelsa like excessive play in rear end like its making the rear end twiste b4 the torque goes to the wheels any one experiance that its like makes a klunking noise when i tap the gas like something haS PLAY IN IT BUT I CANT FIGURE IT OUT

mabye ur missin a mount somwhere and something is twisting?

well i was talking to a friend and they said the diff bushings so im gonig to drop the subframe and put aluminum subframe bushings and ES diff bushings hopfully that will solve alot of the rear end problem

so i jacked my car up and spun the wheel today, i sa that as i turn the wheel it took almost 4 inches of outer diamiter to get ti to engage the diff it has al ot of play like if i where turn the driveshaft a hlaf a turn it would take the hole half a turn b4 it would even turn the wheels so when i drive i downshift tehn gas ti it has that molment of play ,it sucks any one ever find a 1.5 way or 2 way LSD for N/A diff?

So maybe whatever tore up your driveshaft, tore up your differential too. Or your torn up differential helped destroy your driveshaft.

well im puting new bushings in and solid subframe bushings im going to see if vibration goes away and hope the clunk noise goes away

if you have rear end clunk, you probably have a broken rear end mount.

today i check my subframe where it connects its actualy in good shape i think the clunk is coming from the diff maybe exsessive play in bushings alowing it to twist and hit the metal and make a clunking noisealong with 167,000 miles on those bushings so they are deffently shot, whats you exsperiance on the struts mine dont feel wisshy washy or bouncy its more stiff and bummpy the rubber boots are shot but no sign of oil or anything leaking

Carrier Bearing... Been there, done that.

Rod.

I HAVE ONE PIECE SHAFT NO CARRIER BEARING I WISH IT WAS THAT EASY LOL:rolleyes:

so today i went to buddys shop put it up on the lift added some mtl to my trans, and i asked him to take look at rear end, but because i could stand and look at rear end,so it was alot better to examine:rolleyes: but he was looking said the diff bushing are realy bad (new that already) but i was looking my self and was playing with the final drive (the drive shafts going to the wheels) and was pushing on the flange where it connects to the diff, and happens to move and inch all round other side doesnt at all, so im asuming its the inner and outer race(bearing)in the diff so i think i solved (maybe) my rear end vibration and possibly the reson my drive shaft snaped, asuming from what i feel and my buddy says that the bearing could have locked up molmentarly and snaped the drive shaft, it sounds right and logical probly get a used diff put it in there, much work to take that diff apart and change all that, i dont got proper tools any way to be messing with that but hopfully new bushing and diff will solve my problems, any input , any one ever have this happen? i do have alot of miles but alot people say they have never seen a diff go , and on the other hand iv talked to some major companys that say they go all the time, that they roar when they on the way out so i ges time for new one

Dough!!! :eek: My bad!
Sorry, I've just seen more than my share of similarly afflicted Z32's. Have you had the balance on the driveshaft checked? I also saw your post about the looseness in the driveshafts, you could be on to something there.

Rod.

Over and above all of that, he twisted his new Z1 1-pc. d/s into 2 pieces. That's why I was speculating that this vibration problem and his previous d/s failure are related. :)

well ill let you know how it goes if that bad capnione flange mess up anything else u joints in final drives but i got diff coming probly by friday ill get it ill let you guys know if this solved my problem i hope!:rolleyes: hey well atleast my hole drive tran is new:D i want tien flex damper coilover setup any opiouns on it , does it go to comfy ride not to stiff, any experinces? any real mayjor differnce besides one made fully out of aluminium the other is steel

Well For the point where people have told you that differentials dont go. There wrong. I had a 92 chevy pickup and beleived that to until one day with out notice the driveshaft broke. So I used the fourwheel drive to get home and rewelded my driveshaft. Once replaced I went to drive it again, and after about 2 miles or so it made this horible noise and wouldnt move. I got out and looked at the rearend only to find that part of the spider gears were shoved through the cover by the main ring gear. The fluid inside had gotten water contamination and caused the shaft that held the spider gears in place to actually wear apart into 2 peices.

lol i actualy did sorta the same i went four wheeling in my grams EXPO and got stuck real bad had five come alongs to get it out and the trans went, so i was driving it after they fixed it and it made a horrible clunk noise i stop,put car in park,and noticed the dam thing wont stay in park it just rolls lol and i stop go out side put the e brake on and the hole LSD was hanging out of the bottem oil every where it sucked it blew the diff casing apart litterly in pieces lol

LOL.... what do you expect from chevys and frods. The Nissan RS differentials are pretty much bulletproof.

A friend of mine has an infamous yellow 280Z with a 600HP Chevy 383 Stroker in it that is scary fast. After grenading 4 "Stout" chevy rear ends, he put the original Datsun rear end back in one day out of desperation. It's been in there ever since with no issues handling the gobs of power he throws at it... Including bottle launching (NOS) the car! That should tell you something about Japanese quality ;)

Rod.