a big klunk
02-12-2008 | 10:53 PM
#1
Guest
Posts: n/a
a big klunk
my 1975 dart sport just started to make a big clunk noise when i put into reverse but no noise into drive its stock 318 904 setup the rear end sounds like its making noise and maybee the clunking noise and the rear cover looks leeky i just got it and havent time to check it out lately
02-13-2008 | 10:13 AM
#2
Mopar Lover
Joined: Nov 2007
Posts: 2,424
Likes: 248
Most probable causes are a U joint going bad, or "trouble" in the rear end.
To inspect the U joints do NOT just trust wiggling them in place. Remove the driveline, and move the u joints by hand, feeling for roughness in the bearings. Sometimes these can get water inside, rust up, and "feel tight" when in reality the rollers are disintegrating inside.
If it's the rear, could be a number of things, and may not be all that important.
If the rear has had "hard use" you might have damaged something. Does the rear grown or hum or whine at speed? If not, it may be "normal play" from wear.
Try to see if there's bad play on the front drive yoke, and with the car in neutral, rotate the shaft back and forth to see what play is in the ring/pinion.
All "single" rear ends develop some play.
To inspect the U joints do NOT just trust wiggling them in place. Remove the driveline, and move the u joints by hand, feeling for roughness in the bearings. Sometimes these can get water inside, rust up, and "feel tight" when in reality the rollers are disintegrating inside.
If it's the rear, could be a number of things, and may not be all that important.
If the rear has had "hard use" you might have damaged something. Does the rear grown or hum or whine at speed? If not, it may be "normal play" from wear.
Try to see if there's bad play on the front drive yoke, and with the car in neutral, rotate the shaft back and forth to see what play is in the ring/pinion.
All "single" rear ends develop some play.
02-13-2008 | 05:48 PM
#3
Guest
Posts: n/a
could be spider gears
could be u joint.
could be pinion flange runout, does it clunk upon acelleration and deceleration?
ujoint typically will give youy an unbalancing feeling at highway speeds.
or clunk forward and back but not always,
sounds like this diff may have been neglected. entire driveline for that matter.
could be u joint.
could be pinion flange runout, does it clunk upon acelleration and deceleration?
ujoint typically will give youy an unbalancing feeling at highway speeds.
or clunk forward and back but not always,
sounds like this diff may have been neglected. entire driveline for that matter.
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