If you have a 4.2L or 4.6L it's a 8.8", if it's a 5.4L, 5.0L or Eco it's a 9.75"
Randy's Ring and Pinion will have everything you need!!
Yukon is a great brand!!
Silver 2013 F-150 5.0L FX2 - Leveled/Lifted-275/60R20 Nitto Terra Grapplers-Airaid Jr Intake-Resonator Delete-SCT Tuned By MPT
Built On 11-15-2012
Last edited by Z7What; 07-08-2014 at 07:58 PM.