little bit of a shimmy prob

[brown91coupe]

i just had a transmission put in my 91 LX, and now when i'm accelerating between 40-80 MPH the car shimmies, and i just had new axles, and a new rear motor mount put in, has anyone else on here encountered this issue?

[Kabuki]

I am experiencing a very similar symptom. We are thinking that it is probably the worn differential bearings, as there is some noise in the transmission as well. Could also be tire balancing. I'm waiting until I do the engine swap to overhaul the tranny. Are you using a manual or an auto?