02-26-2016, 09:51 PM | #1 |
SomeguyK
Drives: 2010 Black 2SS/RS Join Date: Nov 2014
Location: FL
Posts: 1,947
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Diff bushings
Hello all. Question. Do I use standard (BMR or Prothane) or Hendrix engineering (HE) diff bushings. I am not slammed or crazy low. I looked at my CV axles and both still angle upwards without a crazy angle. I know the HE bushings are used if you are LOW and the angles are great. I don't want to raise the diff and increase the upward angle of the shafts. Any help/clarification is appreciated.
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TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII
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02-27-2016, 10:44 AM | #2 |
Drives: 2000 Camaro SS Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,179
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Before you get to that question, are you sure you need them? What other suspension upgrades have you done and how do you use your car? Diff bushings is something we generally put WAY down the list and only if they are needed. You will pick up NVH (Noise, Vibration, Harmonics) when you change them.
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02-27-2016, 12:21 PM | #3 | |
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Quote:
^^^^^^^^ This... Be ready for a big change in gear whine and noise. You may regret it for a daily driver.
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02-27-2016, 07:09 PM | #4 | |
SomeguyK
Drives: 2010 Black 2SS/RS Join Date: Nov 2014
Location: FL
Posts: 1,947
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Quote:
My question is do I need the HE bushings that raise the diff? I am not very low, maybe a bit over an inch. I don't have an exact measurement and I don't plan on going very low. Will standard replacement aftermarket bushings be fine? Thanks.
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TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII
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02-27-2016, 07:15 PM | #5 |
Drives: 2013 Camaro SS Turbo Join Date: Apr 2014
Location: South Florida
Posts: 1,525
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The HE bushings make the diff loud. It is very noticeable inside the car. But... I've launched my car way to hard and beat up my diff and axles and been fine. So that bring said I'm keeping them
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02-27-2016, 07:23 PM | #6 |
Drives: 2016 2SS coupe 2015 3LT Stingray Join Date: Aug 2012
Location: El paso texas
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you can also do the superpro diff bushings that BMR sells. They told me that the nvh is a lot less with those than with theirs and that they handle more power. If your going above 650 hp I would recommend aftermarket axles
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02-27-2016, 07:52 PM | #7 |
SomeguyK
Drives: 2010 Black 2SS/RS Join Date: Nov 2014
Location: FL
Posts: 1,947
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I appreciate the replies. I know I can use either HE or BMR. My question and largest concern is...do I need the offset bushings? Or are they more for people that have lowered their Camaros a lot.
I looked under my car and pictured having the diff raised and how it would effect the driveshaft and axles. In my mind it looks like I would have almost a 45degree downward angle from the diff to the wheel. That is much more angle than what my axle is at now. Thanks.
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TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII
More to come. |
02-27-2016, 08:36 PM | #8 |
Drives: 2013 Camaro SS Turbo Join Date: Apr 2014
Location: South Florida
Posts: 1,525
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If you don't drag race and launch the car hard on a drag radial I don't think the noise is worth it for the he offset bushings
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02-27-2016, 09:20 PM | #9 |
SomeguyK
Drives: 2010 Black 2SS/RS Join Date: Nov 2014
Location: FL
Posts: 1,947
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Wouldn't any bushing replacement increase the noise or NVH? I thought the offset bushings are for people who are lowered to a certain degree that it is necessary to raise the diff in order to correct the cv and driveshaft angles. Both will increase NVH, I want to know If I need them...If I am even low enough to warrant offset or if standard bushings will suffice.
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TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII
More to come. |
02-27-2016, 09:28 PM | #10 |
Drives: 2013 Camaro SS Turbo Join Date: Apr 2014
Location: South Florida
Posts: 1,525
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The noise from the he offset bushing is from the material, delrin. Much closer to a solid bushing than poly
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02-27-2016, 10:13 PM | #11 |
SomeguyK
Drives: 2010 Black 2SS/RS Join Date: Nov 2014
Location: FL
Posts: 1,947
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Thanks for the reply. Yes I understand delrin will transfer more noise than poly. The poly bushings will transfer some noise, not as much as delrin. Like I said, I am not worried about the noise. I want to know if I need the offset bushings since I am not greatly lowered.
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TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII
More to come. |
02-28-2016, 04:36 AM | #12 |
Team 913
Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500 Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,119
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i have read there are a bunch of people running 1in drops with no issues
once u get past 1.5 ive read that is when things really start getting out of wack I would say no you do not need them from what i have read... I have the HEs in my garage... im doing 1in lowering springs and will probably leave them off for now... have a lot of other suspension stuff I am doing... but i will not be doing those until everything else is done... even if i have to drop the diff again. |
02-28-2016, 02:07 PM | #13 | |
SomeguyK
Drives: 2010 Black 2SS/RS Join Date: Nov 2014
Location: FL
Posts: 1,947
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Quote:
Thanks
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TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII
More to come. |
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03-01-2016, 01:27 PM | #14 |
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From my experience with this I did the off-set Delrin bushings at the same time as the aluminum rear cradle mounts.
The noise was unreal, I have a bolt-on, cam car with no cats, so it's not quiet by any means. The gear whine and clunking of the driveline is more than expected. I since took out the diff bushings for some Poly and it got 30% better.... The axle angle only changed 2.5* between off-set and regular diff bushings. I don't see that being any big deal. I'm probably going to change to a poly cradle mount too sometime soon but I want to get to the track first and run it like it is.
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