Hello, I seem to of lost 3rd and 4th gear. After 25 mph it just seems like one big slip. It only catches once in awhile. I don't try to get it to catch though since I will get knock most of the time if I keep it in drive. Will Lucas help me? I have a feeling it won't. Sadly I have no other car atm so I am still driving the GN under these conditions. I put it in regular drive then at about 20 I'll shift it to 2nd and keep it there. I was told I may blow my motor but I am keeping an watchful eye on the scanmaster and the RPMs average at 2,500-2,700 at 30ish mph. If I gotta drive 40-45 MPH the RPMs avg at 3,000-3,400 RPMs. These are good numbers right? The motor should be ok as long as I am careful and I watch those RPMs correct? Thanks in advance for the help. Sadly I don't have the money for a race type of rebuild and don't really want a stock one. I like nothing but the best for this car.