Fulltext TSBs

Technical Service Bulletins

TSBĀ 14-0044
4X4 – REAR OF VEHICLE SITS LOWER THAN DESIRED UNDER LIGHT LOADS
Publication Date: February 27, 2014

FORD: 2011-2014 F-250

This article supersedes TSB 13-3-8 to update the model years, Service Procedure and Parts List.

ISSUE:

Some customers with 2011-2014 F-250 Super Duty 4×4 vehicles want to raise the rear of their vehicle to change vehicle attitude appearance. This procedure provides the necessary information for this modification in accordance with engineering specifications. The modification is a customer responsibility and is not covered by New Vehicle Limited Warranty.

ACTION:

Follow the Service Procedure steps to perform the modification.

SERVICE PROCEDURE

Rear ride height may be increased by replacing the rear leaf spring spacer block along with additional components. Raising rear ride height could affect fifth wheel trailer compatibility.

  1. Is the vehicle a 2014 model year and equipped with a snow pre-package?
    1. No – proceed to step 2.
    1. Yes – no further action is required. The vehicle is already equipped with all the components listed in this procedure.
  1. Lower the rear axle and remove the original 5 cm (2″) rear spring spacers. Discard spacer, U-bolts, and nuts. Refer to Workshop Manual (WSM), Section 204-02.
    1. Refer to the parts list chart for the correct part and vehicle application. (Figure 1)
  1. Install 10 cm (4″) rear spring spacers, using new U-bolts and nuts.
  1. Raise the rear axle and torque U-bolt nuts in the proper sequence. Refer to WSM, Section 204-02.
  1. Replace the rear shock absorbers. Refer WSM, Section 204-02.
  1. If the vehicle is equipped with a two-piece driveshaft, replace the driveshaft and center bearing bracket. Refer to WSM, Section 205-01 and proceed to Step 8.
    1. Check driveline angles, if required. Refer to WSM, Section 205-00.
    1. Failure to update the center bearing bracket, if required, may result in driveline shudder.
  1. If the vehicle is equipped with a one-piece driveshaft, replace the driveshaft. Refer WSM Section 204-02.
  1. If the vehicle is equipped with a camper package with rear suspension stabilizer bar, replace both rear stabilizer bar links. Refer WSM, Section 204-02.
  1. Adjust headlamp aim. Refer to WSM, Section 417-01.
PART NUMBER PART NAME
F81Z-5598-FA 4″ Block – LH – 137″ / 142″
F81Z-5598-GA 4″ Block – RH – 137″ / 142″
7C3Z-5598-HB 4″ Block – LH – 156″ / 158″
7C3Z-5598-JB 4″ Block – RH – 156″ / 158″
F81Z-5598-DA 4″ Block LH/RH – 172″
BC3Z-5705-C U-Bolts – 137″ / 142″
BC3Z-5705-G U-Bolts – 172″
BC3Z-18125-AK Shock – Gas – 137″ / 142″
BC3Z-18125-U Shock – Diesel – 137″ / 142″
BC3Z-18125-AG Shock – Gas – 137″ / 156″ / 158″
BC3Z-18125-V Shock Diesel – 137″ / 156″ / 158″
BC3Z-18125-AM Shock Gas – 137″ / 142″
BC3Z-18125-AH Shock Diesel – 137″ / 156″ /158″
BC3Z-18125-AA Shock Diesel – 137″ / 142″
BC3Z-18125-AB Rear Shock – Diesel – 172″ / 156″ / 158″
BC3Z-4602-AB Driveshaft – 137″
BC3Z-4602-AJ Driveshaft Gas -142″
BC3Z-4602-AH Driveshaft Diesel – 142″
BC3Z-4602-X Driveshaft – 156″
BC3Z-4R602-MY Driveshaft Gas – 158″
BC3Z-4R602-PT Driveshaft Gas – 172″
BC3Z-4R602-PV Driveshaft Diesel – 172″
BC3Z-4R602-MP Driveshaft – 172″
8C3Z-4831-D Bearing Spacer – 158″
7C3Z-4831-G Bearing Spacer – 172″
DC3Z-5K484-B Stabilizer Link
7C3Z-4831-G U-Bolt – 172″ / 156″ / 158″