katmachine62
Well-Known Member
Hi all...
My vehicle is an all original, Dodge Dart Sedan 440 spec mdl., original 58000 miles. (I'm in Australia fyi!) I have had engine rebuilt, brakes etc all rebuilt, and rear end got new seals and checked out before I imported the vehicle here)
I've had no vibration etc prior to now...
So, for the last week or so I've had the rear of the car up in stands whilst I'd removed the Leaf spring hanger brackets (was going to have some custom brackets made to slightly lower the rear)
Long story short, the brackets I had made weren't up to spec, so I bolted the originals back in
Keep in mind, All that I removed and replaced was these brackets, I did not loosen, nor remove anything else... It is a standard, all original 8 3/4 rear end. After buttoning everything up, and putting her back down, took her out today, and has now developed a high speed (only at 55mph-65mph range) bad vibration through the drive line. Under 55mph, and over 65mph it smoothes out/isn't present.
I have checked the drive shaft, wheel bearings, wheels etc all seem good. I can't help but think I've done something wrong when I jacked up the rear end, had the axles on stands etc?... There's no play in the drive shaft, but could i have somehow altered the pinion angle!? And/or something else? Tomorrow morning I'm thinking to slide some washers under the leafs from the rear to see if that makes a difference (pinion angle) and maybe swap out wheels on the front to see if in case I've lost a balancer on one of the front wheels... If anyone has any feedback would be great to hear
My vehicle is an all original, Dodge Dart Sedan 440 spec mdl., original 58000 miles. (I'm in Australia fyi!) I have had engine rebuilt, brakes etc all rebuilt, and rear end got new seals and checked out before I imported the vehicle here)
I've had no vibration etc prior to now...
So, for the last week or so I've had the rear of the car up in stands whilst I'd removed the Leaf spring hanger brackets (was going to have some custom brackets made to slightly lower the rear)
Long story short, the brackets I had made weren't up to spec, so I bolted the originals back in
Keep in mind, All that I removed and replaced was these brackets, I did not loosen, nor remove anything else... It is a standard, all original 8 3/4 rear end. After buttoning everything up, and putting her back down, took her out today, and has now developed a high speed (only at 55mph-65mph range) bad vibration through the drive line. Under 55mph, and over 65mph it smoothes out/isn't present.
I have checked the drive shaft, wheel bearings, wheels etc all seem good. I can't help but think I've done something wrong when I jacked up the rear end, had the axles on stands etc?... There's no play in the drive shaft, but could i have somehow altered the pinion angle!? And/or something else? Tomorrow morning I'm thinking to slide some washers under the leafs from the rear to see if that makes a difference (pinion angle) and maybe swap out wheels on the front to see if in case I've lost a balancer on one of the front wheels... If anyone has any feedback would be great to hear
