Sponsored

Wiggle in the rear?

armykyle1 [HACKED ACCOUNT

Banned
Banned
Banned
Joined
Mar 20, 2016
Threads
74
Messages
1,849
Reaction score
620
Location
Gulf Coast
Vehicle(s)
2018 GTPP premium
  • Thread starter
  • Banned
  • #1
Quick run down. I snapped an axle. Dropped the diff, pulled off the spindles/hubs and changed a few things. I modified my diff housing to use the BMR through bolts. I also put new wheel bearings in while it was all apart. Before I tightened everything down, I put a jack under each control arm and then torqued everything to spec. None of the bolts on the sub frame where loosened or adjusted. Now the rear of the car was elevated for almost three weeks while I waited on parts.

Went for a quick drive last night, noticed on some bumps the ass end wiggled and or got twitchy and felt like it was trying to go in a different direction. Very hard to describe. It only happened on uneven bumps. So today, I checked my tire pressures and they're all messed up. 22/23 rear and 38/39 front. Brought everything to 32. Less wiggle and twitch now, but it's still there. Jerking the wheel to each side doesn't yield anything. Ran the car up to 110/120 and no odd movements. No rattles or clunks.

Car has 20k on it. Stock PP shocks and struts. Bmr lowering springs. Cradle lockout out kit, diff lockout kit, spherical vertical links and it had a good alignment prior to this.
Sponsored

 

BmacIL

Enginerd
Joined
Sep 21, 2014
Threads
69
Messages
15,010
Reaction score
8,920
Location
Naperville, IL
Vehicle(s)
2015 Guard GT Base, M/T
Vehicle Showcase
1
Replaced with exactly the same axle? Everything fit right?
Sounds like torque steer but from the back (which is primarily caused by unequal length halfshafts on FWD cars). If you only replaced wheel bearings on one side, they could still be tight relative to the other side too.
 
OP
OP
armykyle1 [HACKED ACCOUNT

armykyle1 [HACKED ACCOUNT

Banned
Banned
Banned
Joined
Mar 20, 2016
Threads
74
Messages
1,849
Reaction score
620
Location
Gulf Coast
Vehicle(s)
2018 GTPP premium
  • Thread starter
  • Banned
  • #3
Replaced with exactly the same axle? Everything fit right?
Sounds like torque steer but from the back (which is primarily caused by unequal length halfshafts on FWD cars). If you only replaced wheel bearings on one side, they could still be tight relative to the other side too.
Gt350 axles and I replaced both bearings. I don't believe in replacing only side when it comes to suspension parts.
 

Grintch

Well-Known Member
Joined
Nov 7, 2014
Threads
15
Messages
1,892
Reaction score
792
Location
Hunstville
Vehicle(s)
2015 GT PP
Did you replace the bushings?

Did you reuse the bolts/hardware or use new fasteners?
 

Sponsored

OP
OP
armykyle1 [HACKED ACCOUNT

armykyle1 [HACKED ACCOUNT

Banned
Banned
Banned
Joined
Mar 20, 2016
Threads
74
Messages
1,849
Reaction score
620
Location
Gulf Coast
Vehicle(s)
2018 GTPP premium
  • Thread starter
  • Banned
  • #7
OP
OP
armykyle1 [HACKED ACCOUNT

armykyle1 [HACKED ACCOUNT

Banned
Banned
Banned
Joined
Mar 20, 2016
Threads
74
Messages
1,849
Reaction score
620
Location
Gulf Coast
Vehicle(s)
2018 GTPP premium
  • Thread starter
  • Banned
  • #8
The toe was indeed way out. All better
 

Mustang Mikes Queen Creek

Well-Known Member
Joined
Jun 17, 2016
Threads
17
Messages
192
Reaction score
11
Location
Queen Creek Az
Vehicle(s)
2015 Ecoboost Mustang
All my car does is squirm back and fourth,it follows every un even line in the road.Is this usually and indication of a rear alignment issue.Tire pressures good,just feels like its on weak sidewall slicks.
 
Last edited:
OP
OP
armykyle1 [HACKED ACCOUNT

armykyle1 [HACKED ACCOUNT

Banned
Banned
Banned
Joined
Mar 20, 2016
Threads
74
Messages
1,849
Reaction score
620
Location
Gulf Coast
Vehicle(s)
2018 GTPP premium
All my car does is squirm back and fourth,it follows every un even line in the road.Is this usually and indication of a rear alignment issue.Tire pressures good,just feels like its on weak sidewall slicks.
It definitely can be. Sounds similar to how my car was acting. Sorry for the delay.
Sponsored

 
 




Top