Vette(s): 1975 convertible,with the hard top and power streering.it a 350 L48 with auto trans. the color is light blue.
Only when I am backing the car into my driveway I sometimes get a noise(knocking kinda ).I have replaced all the u-joints,and today when I did the main driveshaft I greased everything and it did it when I got home tonight.When driveing I don't hear it.Any sugestions... Iam.Oh and when I had it on the lift I rocked the wheels back and forth ,no noise.
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Yeah...what he said... The front diff bushing is prone to causing a noise, and even a bump when it gets all squishy. Take a look at the very front of the diff, where the driveshaft bolts up. There is a two-part bushing there, and it will prolly be mangled up. Easy to change, tho.
____________________________________ Joel Adams C3VR Lifetime Member #56 My Link
When it's undetectable, except for a little noise, sometimes you just have to wait it out until it gets a little worse and becomes more obvious. Now that you are aware that something is developing, you should have no trouble identifying the source before it leaves you inconvenienced on the roadside. In the meantime, make sure your fluid level is up. Sorry, that's the best I can contribute.
Jimmy B. Just can't wait to get on the road again.
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