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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 01-20-2011, 08:59 PM
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Jesse Moon Bayne
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Exclamation Vibration In Rear

I just replaced my 2.93 diff with a 3.23 lsd and had to change drive shaft flange and two half shaft flanges. Now when I go between 60-70 if I let off the gas there is a vibration in the rear. Also if I push the clutch in between 60-70 there is a vibration but if I give it gas consistenly then no vibration ( only when clutch in and/or let off gas between 60-70 mph it vibrates ) any Ideas? Could I have over tightened the driveshaft flange when swapped out? Could it just be a coincidence and be my exhaust or something vibrating at this certain speed? Thanks alot
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
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  #2  
Old 01-20-2011, 09:03 PM
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Could be a number of things. Did you follow the rules when you reinstalled the center support bearing and flex disc?
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  #3  
Old 01-20-2011, 09:07 PM
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Jesse Moon Bayne
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I torqued the input nut and turned the side flanges and they turned easily......whats the rules? I couldnt find anything specific.......just seems like if I did something wrong the diff would grab or vibrate all the time
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
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  #4  
Old 01-20-2011, 09:13 PM
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When I swapped my differential flange from 4 bolt to 6 bolt we just tightened the fcuk outa that 32mm nut...Maybe yours is just still loose?
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  #5  
Old 01-20-2011, 09:15 PM
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Jesse Moon Bayne
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but if you tighten it too much then you cant hand turn the axle flanges..they get tight/stuck
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
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E30 87 325e DD
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  #6  
Old 01-20-2011, 09:21 PM
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I'm talking bout the driveshaft flange...isn't that what you're talking bout?
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  #7  
Old 01-20-2011, 09:21 PM
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Jesse Moon Bayne
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yea but when i tightened that too much then the sides wouldnt turn
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Jesse
"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #8  
Old 01-20-2011, 09:27 PM
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Was the car in gear and/or e-brake on? Shhiiit I didn't even check to see if mine turned...lol just tightened and left...
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  #9  
Old 01-20-2011, 09:32 PM
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Jesse Moon Bayne
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well I tightened it out of the car and tried to spin sides and didnt spin so i losened it till it would spin like did before swapped out
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #10  
Old 01-20-2011, 09:42 PM
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I dont know then...lol...maybe someone else can help...sorry...
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  #11  
Old 01-20-2011, 09:42 PM
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Jesse Moon Bayne
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haha...thanks for the help
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #12  
Old 01-20-2011, 10:24 PM
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This sounds exactly like when I had a loose wheel, I know it sounds stupid, but check.

On the highway, it would vibrate unless I gave it gas. Only one lug was tight, and one had completely fallen out.
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  #13  
Old 01-20-2011, 10:53 PM
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Jesse Moon Bayne
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thanks...will check
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #14  
Old 01-20-2011, 11:01 PM
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Jesse Moon Bayne
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wheels are tight
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #15  
Old 01-20-2011, 11:12 PM
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Did you jack up the car and wiggle them?

If they're still tight, jack the rear of the car up safely, have a friend *drive it* through different gears and see if you can see the diff moving, or anything else not normal happening.
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  #16  
Old 01-20-2011, 11:35 PM
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Jesse Moon Bayne
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yea they are tight.....if i over tightened or undertightened the nut on the driveshaft flange would that cause this? just seems weird that its only between 60-70 mph......and fine when on gas....seems like if it was the diff it would happen all the time.....damn this sucks...
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"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #17  
Old 01-21-2011, 05:21 AM
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Quote:
Originally Posted by B1MM3R View Post
yea they are tight.....if i over tightened or undertightened the nut on the driveshaft flange would that cause this? just seems weird that its only between 60-70 mph......and fine when on gas....seems like if it was the diff it would happen all the time.....damn this sucks...
When was the last time ur Dif and subframe mounts were changed? I have a similar problem and my bushings and mounts are shot. Rtabs. Too check it all if it's not all new?
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  #18  
Old 01-21-2011, 06:47 AM
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Jesse Moon Bayne
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Quote:
Originally Posted by JoshuaG View Post
When was the last time ur Dif and subframe mounts were changed? I have a similar problem and my bushings and mounts are shot. Rtabs. Too check it all if it's not all new?
Just got the diff...only have 95k on it...they looked good when out of car
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Jesse
"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD

Last edited by B1MM3R; 01-21-2011 at 10:02 AM.
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  #19  
Old 01-21-2011, 12:48 PM
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did you pull your drive shaft apart at the CSB?
if so did you re-install it exactly how it came apart? (they are balanced together)

definitely sounds like a drive shaft issue to me not a diff problem..

the problem you described sounds exactly like what happens when a U-joint starts to go on a truck, , vibrations a certain speeds and when no throttle is applied

(i own a lifted jeep, ask me how i know about driveshaft problems )
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  #20  
Old 01-21-2011, 01:00 PM
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Jesse Moon Bayne
Location: Roanoke, VA
 
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Yea a guy at my work said it sounds like a u joint too...just weird that I only noticed it after swapping diffs...did not take out driveshaft for swap
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Jesse
"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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  #21  
Old 01-21-2011, 01:05 PM
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have you replaced you guibo?
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Last edited by noexceptions325; 01-21-2011 at 01:07 PM.
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  #22  
Old 01-21-2011, 01:10 PM
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Jesse Moon Bayne
Location: Roanoke, VA
 
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Quote:
Originally Posted by noexceptions325 View Post
have you replaced you guibo?
Nope...all I did was swap the Input flange and output flanges on the diff's nothing with the drive shaft
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Jesse
"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD

Last edited by B1MM3R; 01-21-2011 at 02:24 PM.
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  #23  
Old 01-21-2011, 03:04 PM
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noexceptions325 noexceptions325 is offline
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inspect it and see if its cracked and retarded looking
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  #24  
Old 01-21-2011, 03:06 PM
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Jesse Moon Bayne
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Quote:
Originally Posted by noexceptions325 View Post
inspect it and see if its cracked and retarded looking
Yea im going to tomorrow...just jack up the car and secure it...look around and possibly run in at 60 and see if I see a problem there...ill be back in touch tomorrow...once again I truly appreciate everyones help and input
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Jesse
"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD

Last edited by B1MM3R; 01-21-2011 at 04:07 PM.
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  #25  
Old 01-24-2011, 11:57 AM
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Jesse Moon Bayne
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ok so I still havnt had a chance to check car but ive been google'ing replacing the u joint and some people say that you can't replace it...is this true?
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Jesse
"Cassie"///Mpowered 93 318is 5speed (95 m3 swap).Vaders..Bavauto short shifter..dinan cat back..sways..3.23lsd..tms chip..staggered dsII's...BCracing coilovers..F&R strut tower bar...M3 brakes..x-brace..AFE CAI
2007 X5 3.0si (Wifes)
E30 87 325e DD
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