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I just recently upgraded my FE3 to FE4 suspension. Here is my list of part numbers to include the TTY bolts and all the torque specs. I went with ZL1 springs due to having a supercharger.
Front suspension:
-Sway bar – Part # 84052981
(Clamp nuts 16 ft lbs)
-Links for sway bar SAME (FE3 and FE4) - part # 23240970 & 23240971
(Nuts 74 ft lbs)
-"Ride" Links. These are the diagonal front-front control arms – part # 84051641 & 84051642
(bolts 74 ft lbs/90-105 degrees TTY) Part # 11610915 (2) bolts
-"Handling" Links. These are the lateral front-rear control arms - part # 23317367 & 23317368
(bolts 74 ft lbs/90-105 degrees TTY) Part # 11611268 (2) bolts
-Strut mounts - Part # 84013428 (for MRC)
(Nuts 37 ft lbs)
-Springs – Part # 84312735 (ZL1)
-Struts (MRC) - Part # 84115887 & 84115888
Rear suspension:
-Sway bar – Part # 84026864
(Insulator clamp bolts 43 ft lbs TTY)
Part # 11548327 (1) stud; 11588723 (3) bolts
- Links for sway bars SAME (FE3 and FE4) – Part # 23105170
(Bolts 43 ft lbs TTY; nuts 32 ft lbs) Part # 11518630 (2) bolts
- Adjust Links, (aka the toe link) SAME (FE3 and FE4) – Part # 23117751
(Bolts (inner) for alignment; bolts (outer) 74 ft lbs/105 degrees TTY) Part # 11609598 outer same (2) bolts
- Lower Control arms SAME (FE3 and FE4) - Part # 23282356 & 23282357
(Bolts (inner) for alignment; bolts (outer) 110 ft lbs/105 degrees TTY) Part # 11609598 outer (2) bolts
- *Trailing arm/links (upper) – Part # 84059622 (had same stamped P/Ns as FE3 but sticker was added to make it FE4)
(Bolts (inner) 52 ft lbs/105 degrees TTY; bolts (outer) 74 ft lbs/105 degrees TTY) Part # 11610908 inner & outer same (4) bolts
- *Trailing arm/links (lower) – Part # 84048678 (had same stamped P/Ns as FE3 but sticker was added to make it FE4)
(Nuts (inner) 52 ft lbs/105 degrees; bolts (outer) 74 ft lbs/105 degrees TTY)
Part # 11610908 outer (2) bolts
- Upper control arm or Lateral link SAME (FE3 and FE4)- Part # 22974128
(Bolts (inner) 52 ft lbs/105 degrees TTY; bolts (outer) 52 ft lbs/105 degrees TTY) Part # 11610908 inner & outer same (4) bolts
-Knuckles - Part # 84089877 & 84089878
-Springs - Part # 84079567 (ZL1)
-MRC dampers (rear)- Part # 23281657 & 84219921
(Bolts 52 ft lbs/105 degrees TTY) Part # 11609598 lower bolts (2) bolts
Thanks for all the great info on this thread!
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