I am going to be doing TSB 07-7-2 to lower the rear of my F-350. For those that my not no know, TSB 07-7-2 reads as follows:

TSB 07-7-2 REAR OF VEHICLE IS TOO HIGH/LOW - 5TH WHEEL AND GOOSE NECK APPLICATIONS - 4x4 VEHICLES ONLY

Publication Date: March 26, 2007

FORD: 2005-2008 F-Super Duty


ISSUE:
Some 2005-2008 F-Super Duty vehicles my exhibit a clearance concern when using the vehicle to tow some goose neck and 5th wheel trailer applications.

ACTION:
Follow the Service Procedure steps to change the rear ride height.

SERVICE PROCEDURE

Rear ride height may be reduced or increased by:

Lower - vehicles that have the 4" (10 cm) spacer block by installing a new 2" (5 cm) spacer block along with the other rear suspension hardware
Raise - vehicles that are perceived as riding too low (no spacer block installed) by installing a new 2" (5 cm) spacer block along with other rear suspension hardware
LOWER VEHICLES WITH 4" (10 cm) SPACER IN PLACE

Raise vehicle on hoist and support rear axle.
Remove rear axle U-bolts and nuts.
Lower rear axle and remove 4X4 rear axle spacer blocks.
Place new spacer blocks (Figure 1) on axle and raise axle to bottom of springs, seating springs in axle seat.
Install new rear axle U-bolts and nuts (Figure 1). Torque nuts to 185 ± 28 lb-ft (250 ± 38 N-m).
Remove rear axle shock absorber bolts and nuts, and remove rear shock absorbers.
CAUTION: DO NOT OVER TORQUE SHOCK ATTACHING FASTENERS.



Install new rear shock absorbers (refer to Figure 4 and 5 for correct application). Torque both upper and lower shock nuts to 62.5 ± 9.5 N-m (46 ± 7 lb-ft).
NOTE: FAILURE TO UPDATE THE CENTER BEARING BRACKET (FIGURE 2 AND 3), IF REQUIRED, MAY RESULT IN DRIVELINE SHUDDER.



If necessary, install new center bearing and/or shim (refer to Figure 2 and 3 for correct application) assembly as required.
For checking driveline angles, refer to the Workshop Manual (WSM), Section 205-00.
Adjust headlamp aim by referring to the WSM, Section 417-01.
RAISE VEHICLES WITHOUT 4" (10 CM) SPACER

Raise vehicle on hoist and support rear axle.
Remove rear axle U-bolts and nuts.
Place new spacer blocks (Figure 1) on axle and raise axle to bottom of springs, seating springs in axle seat.
Install new rear axle U-bolts and nuts (Figure 1). Torque nuts to185 ± 28 lb-ft (250 ± 38 N-m).
Remove rear axle shock absorber bolts and nuts, and remove rear shock absorbers.
CAUTION: DO NOT OVER TORQUE SHOCK ATTACHING FASTENERS.



Install new rear shock absorbers (refer to Figure 4 and 5 for correct application). Torque both upper and lower shock nuts to 62.5 ± 9.5 N-m (46 ± 7 lb-ft).
Replace rear axle brake jounce hose assembly with new assembly, refer to the WSM, Section 206-00.
If vehicle is equipped with a rear suspension stabilizer bar, replace rear stabilizer bar links with new stabilizer bar links. Torque stabilizer link nuts to 70 ± 15 N-m (52 ± 11 lb-ft).
Bleed rear brake system by referring to the WSM, Section 206-00.
NOTE: FAILURE TO UPDATE THE CENTER BEARING BRACKET (FIGURE 2 AND 3), IF REQUIRED, MAY RESULT IN DRIVELINE SHUDDER.



If necessary, install new center bearing and/or shim (refer to Figure 2 and 3 for correct application) assembly as required.
For checking driveline angles, refer to WSM, Section 205-00.
Adjust headlamp aim by referring to the WSM, Section 417-01.
NOTE: RIDE HEIGHT ISSUES RELATED TO A CUSTOMER'S TRAILER ARE NOT COVERED UNDER WARRANTY.

After contacting a dealer for parts it looks like I will need the following:

7C3Z5598K - RH spacer
7C3Z5598L - LH spacer
N811667S436 - U-bolts
7C3Z4831G - Driveshaft plate

for a total of $125.65 shipped to my front door

My question is:
What is a driveshaft plate (dirveshaft plate is the wording of the dealer) and how is it installed? Is it the same as the "center bearing bracket" that is noted in the TSB? From what I have been able to learn from the dealer, it is to combat the problem of shuddering which can be a problem if the TSB is not followed to the letter. As for my application, I will not be required to change any of the shocks or shock mounts.

EDIT: Is anyone able to dig up the pictures that go with the TSB? What I was able to find did not include the pictures.

 

I think they are referring to the carrier bearing and any shimming that might need to be added or taken out.

This will ensure you have the right driveline angle so there is no driveline shudder on taken off under a mostly full power event.

 

The driveshaft plate is the center bearing support bracket.

look at 4831 in pic below that is the plate you speak of. And if you didn't already order parts you can order from me.

Ed

 

Thanks for the information guys.

Ed, I have not yet ordered the parts as I am waiting to hear back from the dealer for the cost of them doing the job. I haven't decided if I want to do the job or have them. It looks like a simple enough of a job. If I decided to order the parts, would you be able to get me the full text of the TSB including the missing pictures?

 

I went at looked at the TSB, and there are no pictures in this TSB.

send me your email and i'll send you a copy. 6 pages to TSB.

Ed

 

my bad, 7 pages

Ed

 

Hey Ed, I see you have a new logo. Looks good. Did you step up to a Harley like us? Dan.

 

Had this logo for awhile now, just wanted a cool looking logo, can't afford a new truck. Married with kids and they bleed me dry.

hahahahaha

Ed