65-80 Ass end vibration 80% fixed
09-29-2015, 01:37 PM
#1
Senior Member
Thread Starter
65-80 *** end vibration 80% fixed
Well since this is one of the things we hate most, figured I'd post how I made mine almost unnoticeable. Since I got the truck it had a slight vibration. Then I dropped it.
When I first dropped it I went with the 1.5" setting, to see how it looked. Well that made the vibration worse, obviously we're all on the same page about the pinion angle issue. So I bought the 2* angle shims, made it about 25% better.
Well I decided in combination with the rear end still being about an inch higher and the fact that the shims I bought were specifically designed for a 2" drop, might as well put the rear end at the 2" mark. 40% better
Finally, threw some Bilstein 5100 series in the rear, since the fronts are damn near impossible to get a hold of / I only have 50K miles and was gonna wait til 60 t do mine. 80% better.
Mind you I have 22's so the ride isn't spectacular already, but I knew that:
1) I bought a truck, not a Cadillac. Ain't gonna ride like one.
2) Dropped with 22's, gonna be rough as is.
In conclusion, I only get the rattle sometimes when I go over dips and rises at about 70 and it's not enough to rattle your skull and give you a back massage like before. Thinking of a rear sway bar and raptor trans mount might get me at 90%, but it's enough to get started. Hell, even my wife noticed without me saying anything, so it must be good enough.
When I first dropped it I went with the 1.5" setting, to see how it looked. Well that made the vibration worse, obviously we're all on the same page about the pinion angle issue. So I bought the 2* angle shims, made it about 25% better.
Well I decided in combination with the rear end still being about an inch higher and the fact that the shims I bought were specifically designed for a 2" drop, might as well put the rear end at the 2" mark. 40% better
Finally, threw some Bilstein 5100 series in the rear, since the fronts are damn near impossible to get a hold of / I only have 50K miles and was gonna wait til 60 t do mine. 80% better.
Mind you I have 22's so the ride isn't spectacular already, but I knew that:
1) I bought a truck, not a Cadillac. Ain't gonna ride like one.
2) Dropped with 22's, gonna be rough as is.
In conclusion, I only get the rattle sometimes when I go over dips and rises at about 70 and it's not enough to rattle your skull and give you a back massage like before. Thinking of a rear sway bar and raptor trans mount might get me at 90%, but it's enough to get started. Hell, even my wife noticed without me saying anything, so it must be good enough.
Last edited by Fireimp141; 09-29-2015 at 01:44 PM.
09-29-2015, 03:56 PM
#3
Senior Member
Thread Starter
No that's just what DJM said is optimal for a 2" drop. I've read elsewhere that 3* or 4* is good, but honestly I don't exactly know how to measure pinion angle and have never looked into it.
09-29-2015, 04:00 PM
#4
Senior Member
Originally Posted by Fireimp141
No that's just what DJM said is optimal for a 2" drop. I've read elsewhere that 3* or 4* is good, but honestly I don't exactly know how to measure pinion angle and have never looked into it.
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Fireimp141 (09-29-2015)
09-29-2015, 04:03 PM
#5
Senior Member
Thread Starter
09-29-2015, 04:28 PM
#6
Senior Member
Originally Posted by Fireimp141
Maybe I'll get it up on a lift here sometime today. I manage a mechanic shop so shouldn't be too hard.
09-29-2015, 04:50 PM
#7
Senior Member
Thread Starter