[blinky_1986]

hi there i have an 86 olds cutlass with the 305 th350 i recently had a vibration in the rear when coming to a stop or just starting resulting in no motion except in reverse if i put the car in drive the drive shaft does not spin i am assuming this is my problem what would be the most likely causes and how would i go about checking for them

thank you
blinky

 

[hemi joe]

i had somewhat of a problem like yours,you may want to check your universal joints.also trans fluid level and filter.just some ideas. joe

 

[ericnova72]

If the car won't move forward in drive the driveshaft is not the problem. Sounds like the trans is bad or the rear end has an internal problem. We need a better description of the symptoms. Will the car move forward in drive at all?? or just in reverse?

 

[blinky_1986]

um i just did a lil check if i put the car on stands every gear works i.e wheels spinning drive shaft spins but if its on the ground it wont pull only in reverse ..... trans is new fluid good filter good how would i check for a u joint??

 

[prostreet6t9]

If the Driveshaft is not turning I would be looking at the trans.

 

[blinky_1986]

sorry that didnt make sense

so i put the car on jack stands check fluid all good if i put it in gear it works shaft spins everything is good every gear but once it touches the ground only reverse puts me in motion?? is that a little easier to catch

 

[prostreet6t9]

um i just did a lil check if i put the car on stands every gear works i.e wheels spinning drive shaft spins but if its on the ground it wont pull only in reverse ..... trans is new fluid good filter good how would i check for a u joint??

If it was a U-Joint the Shaft would have probably come out and hit the ground. Any noises??

 

[hemi joe]

prostreet6t9 could this be aproblem with torque converter?i had a broken keyway,had trouble with forward gears but reverse was fine. joe

 

[prostreet6t9]

prostreet6t9 could this be aproblem with torque converter?i had a broken keyway,had trouble with forward gears but reverse was fine. joe

Any problem I've had with a converter,it had problems in all gears.

 

[ericnova72]

Now you made it easy. If the driveshaft is actually turning but the car isn't moving, the rear end is BLOWN-UP internally. Can you verify with the car on the ground in gear that the driveshaft is turning but the car isn't moving?

 

[prostreet6t9]

Did the problem come up after installing a new trans or??

 

[blinky_1986]

thats the thing once it is on the ground the drive shaft doesn,t spin either unless it is in reverse but i cant be in 2 places at once the thing that bugs me is if the rear was blown why would it work in the air ??

 

[prostreet6t9]

Any noises from the rear diff?????

 

[blinky_1986]

negative on noises a clunk but that could be u joint im just not sure if that would prevent any motion period

 

[prostreet6t9]

negative on noises a clunk but that could be u joint im just not sure if that would prevent any motion period

When you loose motion,does the Driveline spin?

 

[prostreet6t9]

Did you just install a new trans?

 

[hemi joe]

i would pull rear cover off and take a look inside.i did this just because i was putting chrome cover on and found 1/2 of one of my spider gears and spring retainer in housing.rear was shot

 

[blinky_1986]

tourque converter and fly wheel do drive shaft does not or the tires

 

[eloc431962]

Help me out here eric, I cant seem to remember what it is called, but i had a th350 there was a hub on the inside when it went bad it did the same thing blinkys car is doing. Had to tear it all apart to fix it. Just cant remember what its called DANG IT!!! Cole

 

[blinky_1986]

so if we narrow out tranny and tourque converter what would cause my rear wnd and drive shaft to only have motion with no friction (being of the ground)