Pulsing in 2nd gear

[paulb1320]

Ok here is what's happening, I will be cruising at around 40 KPH, or 25mph, in second gear and my car starts pulsing and jerking until I let off the gas. The problem also goes away if I shift into 3rd, but I really don't need to shift yet because I'm going too slow. Any ideas what going wrong or what I'm doing wrong.
Thanks in advance

I'll see if I can post a video of it later on.

 

[twicks69]

Likely an intermediate shaft tapered roller bearing failing in conjunction with gear damage. You should likely rebuild your transmission.

Tim Zimmer via Evo Phone