RANCHO RS6505 Installation Instructions Manual Download Page 5

 

 

Figure 4 

 
3)

 

…

 If equipped with ABS brakes, remove sensor wires 

and clamps from the inboard side of the lower arms.  Save 
clamps for reuse. 
 
NOTE:  Remove and replace one suspension arm at a time. 
 
4)

 

…

 Remove the nut, cam, and cam bolt from the axle 

bracket.  Remove the nut and bolt from the frame bracket.  
Remove the lower suspension arm.  See Figure 5. 
 

 

Figure 5 

 
5)

 

…

 Install new Rancho cast link 176180, along with four 

shims from kit 860070, to the frame and axle brackets as 
shown in figure 6.  Use original hardware but do not tighten. 
 
6)

 

…

 Repeat steps 4 and 5 for the other side. 

 
7)

 

…

 If applicable, drill a 23/64" hole into each cast link 

and reinstall the ABS sensor wires.  Use the original clamps. 
 

 

Figure 6 

 
 

P

ITMAN 

A

RM 

R

EPLACEMENT

 

 

1) 

…

 Remove the cotter pin and nut from the drag link at 

the pitman arm.  Separate the drag link ball stud from the 
pitman arm with a puller tool.  Do not use a pickle fork. 
 
2)

 

…

 Center the steering wheel and mark the position of 

the original pitman arm.  Remove the nut and washer from 
the steering gear shaft. 
 
3)

 

…

 Remove the pitman arm from the steering gear with 

pitman arm puller C-4150-A. 
 
4)

 

…

 Align and install new pitman arm 7727 on the 

steering gear shaft.  Install the washer and nut.  Tighten the 
nut to 185 ft. lbs. 
 
5)

 

…

 Install the drag link ball stud to the pitman arm.  

Install the nut and tighten to 60 ft. lbs.  Install a new cotter 
pin. 
 
 

C

OIL 

S

PRING 

I

NSTALLATION

 

 
1)

 

…

 Lower the front axle and remove the hydraulic floor 

jack. 
 
2)

 

…

 Drill a 5/16" hole through the center of the coil spring 

axle pad.  Reinstall the rubber bump stop. 
 
3)

 

…

 Compress the new front coil spring to 16 inches in 

length.  Use a quality spring compressor like the one shown 
in figure 7. 
 

  5

Summary of Contents for RS6505

Page 1: ...alignment must be within factory specifications and the frame must be sound no cracks damage or corrosion F Unless otherwise specified tighten all bolts to the standard torque specifications listed at the end of the note s section Do not use an impact wrench to tighten any of these bolts They tend to over tighten smaller bolts and under tighten larger bolts USE A TORQUE WRENCH B Do not install a b...

Page 2: ... using the following tire and wheel combination 33 x 12 50R 15 tire 15 x 8 wheel with 3 75 of wheel backspacing Before installing any other combination consult your local tire and wheel specialist O To reduce rear driveline vibration and or to increase ground clearance you may want to install a double cardan driveshaft and not use the skid plate crossmember spacers and shift relocating bracket A d...

Page 3: ...hread Lock 2 860161 Skid Plate Spacer Kit 1 176091 Skid Plate Spacer 6 176092 Skid Plate Shim 6 1 2 Cone Washer 6 1 2 13x2 5 FSHCS 6 M10 1 50x70 HHCS 2 10mm Lock Washer 2 860218 Articulation Bushing Kit 1 420080 Sleeve 8 520080 Bushing 16 860070 Shim Kit 1 Washer 16 860483 Skid Plate Hardware Kit 1 M12 1 75 x 65 HHCS 6 12mm Washer 6 860561 Quick Disconnect Hardware Kit 1 420084 Sleeve Front End Li...

Page 4: ...tainer and grommet from both front shock absorbers 6 If applicable remove the bolts attaching the automatic transmission skid plate to the frame rails and the transfer case crossmember Do not use an impact wrench Remove the skid plate NOTE To reinstall the automatic transmission skid plate an adapter kit must be purchased separately 7 Raise the front of the vehicle and support the frame with jack ...

Page 5: ... cotter pin and nut from the drag link at the pitman arm Separate the drag link ball stud from the pitman arm with a puller tool Do not use a pickle fork 2 Center the steering wheel and mark the position of the original pitman arm Remove the nut and washer from the steering gear shaft 3 Remove the pitman arm from the steering gear with pitman arm puller C 4150 A 4 Align and install new pitman arm ...

Page 6: ...right front brake hose RS170081 Refill the master cylinder reservoir with approved brake fluid and bleed the front brakes as follows Attach a clear hose to the right front caliper bleeder screw and immerse the other end into a container of clean brake fluid Loosen the bleeder valve on the caliper Have an assistant push the brake pedal down and then hold Tighten the bleeder valve and slowly release...

Page 7: ...mounting hole Install upper shock grommet retainer and nut Tighten to 17 FT LBS Repeat for other side Figure 11 11 Tighten the sway bar lower link bolts to 70 FT LBS 12 Tighten the lower suspension arm to frame bracket nut and bolt to 130 FT LBS both sides 13 Align the reference marks on the adjustment cams and lower arm axle brackets Tighten nuts to 85 FT LBS 14 Apply grease to the new lower susp...

Page 8: ...DO NOT REUSE ORIGINAL SHOCK ABSORBERS 2 Remove the lower arm axle and frame mounting bolts Remove the lower suspension arm 3 Install new Rancho cast link 176180 along with four shims from kit 860070 to the frame and axle brackets See figure 13 Use original hardware but do not tighten 6 Mark the orientation of the coil springs on the axle pads Carefully lower the rear axle until the coil springs ar...

Page 9: ...gure 14 5 Place the track bar into the frame bracket and install the original hardware Tighten the track bar mounting bolts to 74 ft lbs 3 Repeat steps 1 2 for other side 4 Lower rear axle and position the new coil springs onto the axle pads Align springs with reference marks Raise the axle until the springs seat in the upper mounts 6 Tighten all lower arm pivot bolts to 130 ft lbs and the shock a...

Page 10: ... washer and apply thread lock to 3 flat head screws from kit 860161 Insert the screws through the crossmember spacers and into the frame See figure 17 3 Slide the torque shaft bracket off the torque shaft and remove the bearing plate gasket 4 Attach the bearing plate with gasket to shift relocating bracket 176090 as shown in figure 20 5 Using bracket 176090 as a template mark the two mounting hole...

Page 11: ...into 4L position and loosen lock bolt on adjusting trunnion 7 Reposition the cover boot Install one screw on the left side or 9 o clock position NOTE Be sure shift rod slides freely in trunnion 8 Rotate the boot clockwise to match the increased floor pan opening Mark and drill the three new mounting holes See figure 22 9 Verify that transfer case range lever is fully engaged in 4L position Tighten...

Page 12: ...s for full suspension movement Figure 23 4 Readjust headlamps Have vehicle Aligned to manufacturer s specifications IMPORTANT NOTICE WARNING DO NOT OPERATE THIS VEHICLE ON PUBLIC ROADS OR AT SPEEDS GREATER THAN 15 MPH WITH THE SWAY BAR END LINKS DISCONNECTED Alignment Specifications Adjustment Preferred Range Caster 7 1 0 Camber fixed angle 0 25 0 63 Toe In each wheel 0 15 0 15 Thrust Angle 0 0 15...

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