Bouncing Rearend

1969Mach1 · 07-06-2002, 04:49 PM

Ok, my car's been real good to me other then this one problem. When I'm taking off and I'm letting out the clutch the back of the car starts jumping, like it shakes from the inside and my buddy was saying the back tires were jumping alot. I'm thinking the U-Joints but I could be wrong. Any ideas on what it could be? If you need more information feel free to ask. Once the car is moving there is no problems, just when taking off.

Thanks in advance.
§am.

Gearhead999 · 07-07-2002, 02:55 PM

Sounds like spring wind up, better know as "wheel hop".

Stronger springs, taction bars.

Make sure the clutch isn't chattering and causing it.

1969Mach1 · 07-07-2002, 04:52 PM

I don't believe it's wheel hop cause it wasn't doing that when we first drove it and we're not even taking off fast enough for it to happen. Like I mean you can take off real real slow and it still does it, I believe it has new springs and it has traction bars on it. As for the clutch I guess I will have to check it out. What's your opinion on the U-Joints?

Rev · 07-07-2002, 05:20 PM

It sounds like clutch chatter pure and simple. A new clutch should fix it IMHO.

Rev

Gearhead999 · 07-07-2002, 05:56 PM

No u-joint. Has to be the clutch.

Did you install the clutch???

Did you cut the flywheel??

Did you get grease on new clutch and surfaces when you installed it, if you did??

Now that we have more info. Sure sounds like the clutch chattering.

1969Mach1 · 07-07-2002, 09:16 PM

No I didn't install the clutch, I bought my car in October and it's the clutch that's in there now. So I'm thinking pretty much now it's the clutch, but I thought of this tonight. I have a Posi and in the spring I put down rubber by accident in my driveway and only 1 tire spun, the right tire, now the only tire really hoping is my left tire. Could that mean anything? I'm going to have it looked at once it gets appraised and insurance put on it.
Any suggests on a good clutch?

Sam.

6T9PONY · 07-07-2002, 09:42 PM

The 2 problems are probably (no 100% sure though) irrelevent to eachother. You're posi is probably shot, so it will need to be rebuilt. And your clutch is probably shot also so it's chattering, causing the jolting.

1969Mach1 · 07-09-2002, 06:55 AM

Ok thanks, yeh I'm thinking of getting the posi rebuilt, anyone know apx. how much that goes for? Can't wait tell pay day so I can once again say I have no money.

Sam.

07-06-2002, 04:49 PM	#1
1969Mach1 HEY I CAN SET A NAME NOW! Join Date: Oct 2001 Location: Ontario, Canada Posts: 2,556	Bouncing Rearend Ok, my car's been real good to me other then this one problem. When I'm taking off and I'm letting out the clutch the back of the car starts jumping, like it shakes from the inside and my buddy was saying the back tires were jumping alot. I'm thinking the U-Joints but I could be wrong. Any ideas on what it could be? If you need more information feel free to ask. Once the car is moving there is no problems, just when taking off. Thanks in advance. §am. __________________ 1969 Mustang Mach 1Sold 351-4V Windsor, 4 Speed MACH 1 - Moving At The Speed Of Sound. 1979 Mustang Indianapolis 500 Pace Car For Sale - Email me for Info 302-2V, 3-Speed Auto One of 2,106 made One of 405 sent to Canada. Yes those are caution lights, and No you can't pass me when there on. Ricer Hater's Club - Member #4

07-07-2002, 02:55 PM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Sounds like spring wind up, better know as "wheel hop". Stronger springs, taction bars. Make sure the clutch isn't chattering and causing it. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

07-07-2002, 04:52 PM	#3
1969Mach1 HEY I CAN SET A NAME NOW! Join Date: Oct 2001 Location: Ontario, Canada Posts: 2,556	I don't believe it's wheel hop cause it wasn't doing that when we first drove it and we're not even taking off fast enough for it to happen. Like I mean you can take off real real slow and it still does it, I believe it has new springs and it has traction bars on it. As for the clutch I guess I will have to check it out. What's your opinion on the U-Joints? __________________ 1969 Mustang Mach 1Sold 351-4V Windsor, 4 Speed MACH 1 - Moving At The Speed Of Sound. 1979 Mustang Indianapolis 500 Pace Car For Sale - Email me for Info 302-2V, 3-Speed Auto One of 2,106 made One of 405 sent to Canada. Yes those are caution lights, and No you can't pass me when there on. Ricer Hater's Club - Member #4

07-07-2002, 05:20 PM	#4
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Clutch chatter It sounds like clutch chatter pure and simple. A new clutch should fix it IMHO. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

07-07-2002, 05:56 PM	#5
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	No u-joint. Has to be the clutch. Did you install the clutch??? Did you cut the flywheel?? Did you get grease on new clutch and surfaces when you installed it, if you did?? Now that we have more info. Sure sounds like the clutch chattering. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

07-07-2002, 09:16 PM	#6
1969Mach1 HEY I CAN SET A NAME NOW! Join Date: Oct 2001 Location: Ontario, Canada Posts: 2,556	No I didn't install the clutch, I bought my car in October and it's the clutch that's in there now. So I'm thinking pretty much now it's the clutch, but I thought of this tonight. I have a Posi and in the spring I put down rubber by accident in my driveway and only 1 tire spun, the right tire, now the only tire really hoping is my left tire. Could that mean anything? I'm going to have it looked at once it gets appraised and insurance put on it. Any suggests on a good clutch? Sam. __________________ 1969 Mustang Mach 1Sold 351-4V Windsor, 4 Speed MACH 1 - Moving At The Speed Of Sound. 1979 Mustang Indianapolis 500 Pace Car For Sale - Email me for Info 302-2V, 3-Speed Auto One of 2,106 made One of 405 sent to Canada. Yes those are caution lights, and No you can't pass me when there on. Ricer Hater's Club - Member #4

07-07-2002, 09:42 PM	#7
6T9PONY All about the Windsor. Join Date: Feb 2000 Posts: 2,052	The 2 problems are probably (no 100% sure though) irrelevent to eachother. You're posi is probably shot, so it will need to be rebuilt. And your clutch is probably shot also so it's chattering, causing the jolting.

07-09-2002, 06:55 AM	#8
1969Mach1 HEY I CAN SET A NAME NOW! Join Date: Oct 2001 Location: Ontario, Canada Posts: 2,556	Ok thanks, yeh I'm thinking of getting the posi rebuilt, anyone know apx. how much that goes for? Can't wait tell pay day so I can once again say I have no money. Sam. __________________ 1969 Mustang Mach 1Sold 351-4V Windsor, 4 Speed MACH 1 - Moving At The Speed Of Sound. 1979 Mustang Indianapolis 500 Pace Car For Sale - Email me for Info 302-2V, 3-Speed Auto One of 2,106 made One of 405 sent to Canada. Yes those are caution lights, and No you can't pass me when there on. Ricer Hater's Club - Member #4

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