ok, here goes.

i have a 91 z-28 conv. auto. a few months ago i had a scroggin 350 vortec tpi engine installed. yes it is fun.

a few weeks ago as i pulled away from the car next to me i heard and felt a BIG bump from under the car. after that every time you step on the gas hard (not breaking the wheels loose) it gives me the same BUMP and it feels like it is comming from the rear end.

i replaced the rubber bushings on the sway bar, put on some bmr lower control arms, put on an adjustable bmr track bar and a set of eibach springs. guess what, it still has the same problem.

after that i was outta ideas.

HELP!!

 

tranny mount? motor mount?

 

I second the tranny mount, my neighbor had the same problem with his old thirdgen camaro.

 

Here is a third vote on the tranny mount

 

i forth vote for the tranny mount. my firend had a new one installed in his gta and they got the wrong one and it was for a v6 and he has a 350 well it snapped again and everytime he got on it ud feel and hear the loud bang. he got a used one from my brother becuz he replaced his one in his 91z28 with a 350 for a ES mount and after he installed the one from the 91 z28, that bang went away.

 

Tranny mount!

 

honestly i have not checked the tranny mount.

i have had to replace the mount before and this is NOTHING like what happened when is was broken. (i have replaced it twice)

i will check to make sure.

it seems to be more often if i am accelerating out of a right hand turn.

thanks a BUNCH for the input.

 

Make sure you replace it with a polyurethane tranny mount. The stock rubber one will break again for sure, especially if you have mods.

 

I'll take a stab and say oil filter , lol.

Tranny mount.

 

tranny mount dude.

 

Mark i was thinkin for like the seat belt but ur probably right about the oil filter

 

ok now.....let me get this straight......you guys think it's the transmission mount? are you sure now. no second guessing.
i already checked the oil filter and the seat belt.

i'll let you know asap.

HAPPY EASTER!! HE IS RISEN

 

hey now we all know its a lug nut coming off. You've got 2 left.

 

Tranny Mount

100% Sure

 

my vote on tranny mount. Wouldnt it suck though if all of us who tried to step up and said we knew what we were talking about and we were all wrong.

 

I'm going to say you're all wrong and say it's the torque arm mount.

I've got my Nomex and my helmet, just in case

 

Dude I think your blinker stopped working or something?

jk another vote for tranny mount.

 

:rockon: right on brother!!!

 

fast86,

Naw. If you read back through some of his other posts, you might find that he's already changed the blinker fluid, and went with KaleCo synthetic just to be sure.

Trans mount, crossmember bolts, exhaust or cat interference, torque arm mount, or if it were Red Devil, I'd say another "pretzeled" driveshaft.

Keep that Nomex handy and dry...

 

Dont use synthetic, you will ruin all gaskets and seals and cause the blinker to blink slowly.

I say Tranny Mount, but the right hand turn stuff sounds a little fishy... (shhhh, rearend, ie. spider gears). Nah, I'm sticking with Tranny Mount.

 

I think I found your problem, A broken window roller upper. On the other hand it could be the tranny mount, mine did the same thing when I got it, I would spin the wheels and everytime they catch huge *** bump. Replaced tranny mount and it went away.



Later,
Steve

 

ok, i have finished changing the fluid in the tail light over to synthetic.

i replaced the window rollerupper and the windshield wippers!!

i also took the web out of the spider gears.

my dog ate the pretzel in the drive shaft.

then i replaced the tranny mount.

ta da!!

now it doesnt do that anymore. just for fun i went out and smoked a 5.0 mustang.....aint life great!!

thanks for the help.

now if any of you can gemme ideas on my tranny problem i will be impressed!!! look under "mush in the tranny at 7 grand" if you get a chance.

thanks for the help guys!!!

 

has anyone mentioned the tranny mount?

 

Small animals crossing the road?? Some city worker's head sticking out of a manhole, wonder what all the commotion above is all about??

 

Glad to hear you got it fixed. I think its a good thing when people reply back with how the problem was fixed. Its better for people doing searches and such.