RX7Club.com - Mazda RX7 Forum - Need Some Help!!!!!!! What To Do!!!!!!

Ok,
Today I went to my girls house to pick her up, and I came to the first street leaving there, it is a good size hill and is had sand on the right side of it! I start to accelerate up it and my right tire starts to spin in the sand then as soon as my right tire gets out of the sand, my car makes a funny noise from the middle of the car (like something came apart in the tranny) the car starts to shake so I stop on the hill. I put it in reverse and try to back up it starts to move in reverse for about 4 feet then, it felt like something was binding up and stopping me. So, I put it in neutral and let it role down the hill back onto my girls street. I get out and turn my car around on foot, I get back in and put it in first gear an try to go the car starts to move, then it makes a thunk, thunk, thunk noise like somthing was hitting. (like maybe a broke axel noise) So, anyhow I put it in first gear and started to accelerate the car makes that thunk noise then I shift into second gear and it starts to go away. I drove about a 1/2 mile back to my girls house and parked it. The clutch feels fine, it goes in to all gears, and it starts up, I never had any problems with the gears, clutch and etc... I have about 120,000 miles on my car. Like I was saying it is binding up in reverse, I put the car in reverse and it will go back about 3 or 4 feet then it starts to feel like there is something stopping me I try give it a little gas and it just sits there and O yeah that damn wierd noise! PLEASE HELP!!!!!!! :confused: If you need more info about anything else just let me know, I do know alot about the REX :)