rear diff question. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

oldman14ss · 05-26-2020, 09:37 AM

here we go, has anyone dropped the center section to change the 3 diff bushings by just pulling the 3 bolts? leaving the axles attached,leaving the drive shaft attached ? I'm thinking there is enough play to do that very thing. only have to drop half diameter of bushing. reds too hard for me. going for a little softer but ,not back to stock. too much harmonics for me I'm a highway star. not so much drag racer. I think there is enough travel to do it. I have the service manuals I will see what they say.wondering if any short cuts could be had. the oldman....

gtstorey · 05-26-2020, 09:56 AM

You will likely have trouble getting one of the old bushings out with the diff in place. I attempted to do it this way when I changed diff covers. I think I got one of bushings on the body of the diff changed with it in the car, couldn't see a good way to do the other with it still in and decided to leave the one remaining original . I then realized I couldn't torque the load bolts on the cover with it in the car and dropped the diff anyway. At that point I realized how much easier it would have been to drop the diff completely to start with. My recommendation is to just pull the diff.

oldman14ss · 05-26-2020, 10:38 AM

they are bmr 2 piece diff bushings

Black_SS10 · 05-26-2020, 11:04 AM

Drop the diff, it'll be much easier to remove and install the bushings.

oldman14ss · 05-26-2020, 12:57 PM

You guys are killing me.

gunchamp · 05-26-2020, 03:20 PM

Quote:

Originally Posted by oldman14ss

You guys are killing me.

LOL, but yeah drop the diff. The amount of cussing and swearing trying to do it in place wont be worth the amount of time it takes to drop it out

gtstorey · 05-26-2020, 03:30 PM

If you are replacing 2 piece bushings with different 2 piece bushings, it is likely doable. I would think that you might have to pull the cover and disconnect the driveshaft to get enough room, but I really don't know.

frankwjr · 05-26-2020, 03:42 PM

yup gotta drop...if your careful you can just pull the pass. axle and leave the drive side in...tilt the diff and it drops right out...getting the OEM bushings out can be a b.

Good luck!

PEACE

Greenhornet2 · 05-26-2020, 07:20 PM

Sometimes it's easier to spend the 30 minutes to take it all apart and save the 2 hours of aggravation.

gunchamp · 05-26-2020, 08:23 PM

Quote:

Originally Posted by Greenhornet2

Sometimes it's easier to spend the 30 minutes to take it all apart and save the 2 hours of aggravation.

Yup!

Black_SS10 · 05-27-2020, 01:03 PM

I don't know why you didn't do it when you had the diff out for gears.

oldman14ss · 05-28-2020, 01:00 PM

I did change from stock to the 2 piece bmr reds. was going to get the lower durameter blacks and put those in to see if that quelled the resonance thru the chassie. my situation is so fluid right now. I all boils down to my rear end set up and how I was rushed out the door after the guy I've known for 13 years did the work, won't answer my calls, won't return my calls etc. he took a side grinder with a cut off wheel cut the pinion bearing off and slotted my old pinion shaft so if I ever wanted to return my LSD with the 3:45 it would be a no go. found some other rear end guys in area that know IRS systems bought dial indicator with mount, for checking back lash, beam type torque wrench for pinion preload, I should have done this myself and saved $600 bucks. it just pisses me off when people you trust do shoddy work and push you out the door them play chicken shit! I'm an electrician if my shits wrong people die. some people have no guts or pride.
;

oldman14ss · 05-28-2020, 01:01 PM

will keep you guys posted

Greenhornet2 · 05-28-2020, 02:41 PM

So is this the noisey diff issue that i thought was set up wrong from the get go? Turns out he set it up wrong?

05-26-2020, 09:37 AM	#1
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	rear diff question. here we go, has anyone dropped the center section to change the 3 diff bushings by just pulling the 3 bolts? leaving the axles attached,leaving the drive shaft attached ? I'm thinking there is enough play to do that very thing. only have to drop half diameter of bushing. reds too hard for me. going for a little softer but ,not back to stock. too much harmonics for me I'm a highway star. not so much drag racer. I think there is enough travel to do it. I have the service manuals I will see what they say.wondering if any short cuts could be had. the oldman....

05-26-2020, 11:04 AM	#4
Black_SS10 SomeguyK Drives: 2010 Black 2SS/RS Join Date: Nov 2014 Location: FL Posts: 1,947	Drop the diff, it'll be much easier to remove and install the bushings. __________________ 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.

05-26-2020, 03:42 PM	#8
frankwjr Drives: 2010 SS 2SS M6 Join Date: Aug 2016 Location: Smithsburg, Md. Posts: 2,445	yup gotta drop...if your careful you can just pull the pass. axle and leave the drive side in...tilt the diff and it drops right out...getting the OEM bushings out can be a b. Good luck! PEACE __________________ 2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - *150K!* - All work by me...

05-26-2020, 07:20 PM	#9
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	Sometimes it's easier to spend the 30 minutes to take it all apart and save the 2 hours of aggravation. __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

05-27-2020, 01:03 PM	#11
Black_SS10 SomeguyK Drives: 2010 Black 2SS/RS Join Date: Nov 2014 Location: FL Posts: 1,947	I don't know why you didn't do it when you had the diff out for gears. __________________ 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.

05-26-2020, 09:56 AM	#2
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,149	You will likely have trouble getting one of the old bushings out with the diff in place. I attempted to do it this way when I changed diff covers. I think I got one of bushings on the body of the diff changed with it in the car, couldn't see a good way to do the other with it still in and decided to leave the one remaining original . I then realized I couldn't torque the load bolts on the cover with it in the car and dropped the diff anyway. At that point I realized how much easier it would have been to drop the diff completely to start with. My recommendation is to just pull the diff.

05-26-2020, 10:38 AM	#3
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	they are bmr 2 piece diff bushings

05-26-2020, 12:57 PM	#5
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	You guys are killing me.

05-26-2020, 03:30 PM	#7
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,149	If you are replacing 2 piece bushings with different 2 piece bushings, it is likely doable. I would think that you might have to pull the cover and disconnect the driveshaft to get enough room, but I really don't know.

05-28-2020, 01:00 PM	#12
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	I did change from stock to the 2 piece bmr reds. was going to get the lower durameter blacks and put those in to see if that quelled the resonance thru the chassie. my situation is so fluid right now. I all boils down to my rear end set up and how I was rushed out the door after the guy I've known for 13 years did the work, won't answer my calls, won't return my calls etc. he took a side grinder with a cut off wheel cut the pinion bearing off and slotted my old pinion shaft so if I ever wanted to return my LSD with the 3:45 it would be a no go. found some other rear end guys in area that know IRS systems bought dial indicator with mount, for checking back lash, beam type torque wrench for pinion preload, I should have done this myself and saved $600 bucks. it just pisses me off when people you trust do shoddy work and push you out the door them play chicken shit! I'm an electrician if my shits wrong people die. some people have no guts or pride. ;

05-28-2020, 01:01 PM	#13
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	will keep you guys posted

05-28-2020, 02:41 PM	#14
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	So is this the noisey diff issue that i thought was set up wrong from the get go? Turns out he set it up wrong? __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane