1970 Trans-Am Mustang Front Suspension Instructions. Manual, Volume One, Chassis. Special instructions and precautions will be given

Size: px

Start display at page:

Download "1970 Trans-Am Mustang Front Suspension Instructions. Manual, Volume One, Chassis. Special instructions and precautions will be given"

Hester McLaughlin
6 years ago
Views:

1 1970 Trans-Am Mustang Front Suspension Instructions 1. This kit was designed to be used in conjunction with the Rear Suspension kit. 2. This conversion follows standard procedures as described in the 1970 Ford Car Shop Manual, Volume One, Chassis. Special instructions and precautions will be given where required. 3. Make sure you have the required production Ford parts listed on the last page on hand before starting work. 4. You will need the following tools: Tool - T63P-5310-A Spring compressor Tool - T57P-3006-A Ball joint assy. removal press Tool - T62F-3006-A Ball joint press adapter screw Tool C Tie rod ball end remover 5. Remove spindle 6. Remove front upper control arms per Section Remove front springs and shocks and shock brackets. 8. Remove front jounce bumper brackets. 9. Remove front lower control arms, camber adj. cams, bolts, etc. 10. Remove front strut per Remove #2 crossmember (under engine) 12. Remove steering center link per Remove steering idler arm and bracket assy. per Install new steering idler arm and bracket assy. (power steering type). 15. Drill two new holes for the upper arm mounting in the spring tower to the enclosed template (see Figure 1). 16. Remove (by grinding) camber adjustment guide located at inner lower control arm pivot hole. 17. Temporarily install the new special No.2 crossmember (under engine) to the frame rails using the original tapered bolts.

2 18. Using the hole in the vertical plate of the new crossmember, determine the enlargement necessary in the existing lower arm slot. Enlarge the slot in in both the front and rear surfaces of the lower control arm brackets until the 1/2-13x4.75 bolt can pass straight through. 19. Using washers as shown in Figure 2, and the 1/2-13 x 4.75 bolt as a locating pin, tack weld the washers on the front and rear surfaces of both brackets. 20. Remove 1/2-13 x 4.75 bolts and crossmember and weld the washers to the lower control arm bracket. 21. Reinstall the crossmember and fit the two spacers shown in Figure 3. Shorten their length until the spacers fit snugly between the crossmember vertical plate portions and the newly welded-on washers on the rear of the frame brackets. 22. Weld the spacers to the crossmember vertical blades using the 1/2-13 x 4.75 bolt as a locating pin. 23. The above arrangement reinforces the inner pivot point and provides a nominal 2 of negative camber when assembled with.25" shim between the upper control arm mounting and the spring tower. 24. Replace the production lower arm outer ball joint with the MOOG Kit K-8029 per the instructions. 25. Install the reworked production lower control arms using the 1/2-13 x 4.75 bolts, washers and nuts to hold the inner control arm pivot and to tie the No. 2 crossmember to the frame brackets. 26. Install the lower strut using the MOOG Front Insulator Kit K Turn the metal washers around so the cup is toward the rubber cushion instead of away from it. Silicone spray will be helpful in removing the cushions from the metal pieces. 27. Install the new specified Upper Control arms (which provide more ball joint

3 28. Install the front spindle, hub, drum, caliper (same as removed or new as built up for Front Disc Brake Kit). Install the front spring supplied in the kit. Cut 5/16" off the outer edge of the spring seat ears for clearance to the control arm. The spring shims shown in Figure 4 can be used at the top of the spring to raise the vehicle should the standing height be low. A.25 shim will raise the vehicle approximately.50 inches. If more than 3 shims are required, the production spring pilot should be lengthened by means of a welded-on steel tube extension. 29. Install the front shocks (special shorter KONI double adjustable ) and the heavy duty upper shock brackets specified. These shocks should have jounce bumpers installed. 30. Install the special steering crosslink per Reset the front suspension to the following specifications: Caster positive Camber 2 0 negative Toe-In 1/8" The shims shown in Figure 5 can be placed between the upper arm and the spring towers to reduce camber, if required. 32. Using templates shown in Figure 6, rework the front fenders for tire clearance. angular travel into jounce allowing a lower ride height) into the new lower holes in the spring towers. Use the special Keystone-type lock washers.

4 PARTS LIST Quanity ea. 6 ea. Description Crossmember Assembly, No. 2 Rod Assembly - Steering Pitman to Idler Arm (Crosslink) Bolt - 1/2-13 x 4 3/4 (Crossmember and lower arm to chassis) Lock Washer 1/2 (Crossmember and lower arm to chassis) Nut 1/2-13 (Crossmember and lower arm to chassis) Arm and Bracket Assembly - Steering Idler (power steering) Control Arm Assembly - Upper Bracket - Upper Shock, Export Shock - front, double adj. Kit - front, strut Kit - lower arm ball joint Cotter Pin - Ball Joints Cotter Pin - Tie Rod End Front Springs 720 lb./in. rate Part Number DOZX-5025-A DOZX-3304-A Grade S S2 C7ZZ-3350-A C9ZZ-3082-A C7ZZ A KONI-8210-J-1050 MOOG-Kit #K-8124 MOOG-Kit #K-8029 DOZX-5310-B

9 1970 Trans-Am Mustang Rear Suspension Instructions 1. These rear suspension parts are designed to provide a rear suspension package which can be used in conjunction with the front suspension modifications. 2. The rear suspension pieces include higher rate rear leaf springs, a rear spring front eye bushing design, rear track bar parts and alternate rear stabilizer bars. REAR SPRINGS 1. These springs are a special 5 1/2 leaf design which provide improved axle control while still maintaining an acceptable ride rate. 2. It is recommended that the solid front spring eye bushings (see figures 1 & 2) be used in conjunction with the special springs. 3. The installation of these rear spring assemblies follow the procedures given in the 1970 Ford Car Shop Manual, Volume One, Chassis, Section REAR TRACK BAR 1. The track rod installation is recommended for all out competitive applications. 2. The sequence for rear track bar installation is as follows: (a) Construct track bar as shown in Figure 3. (b) Weld track bar body mounting bracket (DOZX-5546-A) to frame (see Figure 5). (c) Using track bar (DOZX-5A639-A) mounted in body bracket, locate and weld track bar axle mounting bracket (DOZX-5557-A) to axle with car at design height. (d) Axle bracket should be approximately 3.38 from the centerline of the spring (see Figure 5). (e) Track bar should be horizontal to ground at design height.

10 REAR STABILIZER BAR 1. These special rear stabilizer bars (DOZX-5A772-A, DOZX-772-B, etc,) are required to clear the rear calipers of the Rear Disc Brake Kit on 1970 Boss 302 Mustangs and Cougars. These special rear stabilizer bars can also be fitted to standard Mustangs and Cougars with Drum Brakes, and earlier vehicles. 2. Remove the existing production rear bar, insulators and links. 3. Remove the stabilizer bar lower spring plates from under the axle housing and re-install them so that link mounting ear is to the rear and outside the leaf spring. This will locate the bar links behind the axle instead of the production location in front of the axle. 4. Install the special rear stabilizer bar, its insulators, the spacer blocks (see Figure 4), the original insulator brackets to the original location under the frame rails with the 5/16-18 x 2.00 length bolts provided. 5. Cut the production spacer tubes to 4.90 length. 6. Install the Link Assemblies by passing the long 3/8-24 x 7 1/2 bolt upward through the original link insulators, the lower spring plate, the reworked spacer and then thread the jam nut and ball joint onto the upper end of the link bolt. 7. Fasten the ball joint stud into the center hole of the stabilizer bar end flange for a starting point with nut supplied. 8. The other ball joint holes in the stabilizer bar ends can be used to adjust the stabilizer bar's effectiveness. FENDER REWORK 1. Using templates shown in Figure 6, rework the rear fenders for tire clearance.

11 REAR STABILIZER BAR INSTALLATION 1969 and earlier Mustangs 1) Order insulators C70Z-5493-C brackets OOOZ-5486-A plates DOZZ-5A775-A es 2) Make 2 meta1 plates 3) Install bar and links to plates under rear springs (bar behind axle) plates. 4) Locate bar in position under rear frame rails to determine position of mounting bracket holes 5) Weld the metal plates to frame rails drill holes through into frame rail tap holes 5/ ) Fasten bar, insulators, spacer block and brackets to frame with 5/16-18x2.00 hex head bolts furnished.

12 PARTS LIST QUANITY DESCRIPTION PART NUMBER Rear Spring Assys. 200 lb./in. rate 1 ea. Track Bar Assy. 1 ea. Bracket - Frame, Track Bar 1 ea. Bracket - Rear, Track Bar Link Assemblies 4 ea. Bolt - 5/16-18 x 2.00 Long (Spacer to Frame Rail) Shock Absorber, Rear 1 ea. Stud - Track Bar, Rear 1 ea. Bolt 9/16-12x2.75 Long (Track Bar) 3 ea. Nut 9/16-12 Hex Lock (Track Bar) 1 Bar - Rear Stabilizer 5/8 Dia. (Requires D0ZX-4A343-A Link Assembly) DOZX-5556-B C6AZ-5A639-B DOZX-5546-A DOZX-5557-A DOZX-4A343-A KONI 8210-J-1003 C6AZ-4269-A S DOZX-5A772-B 1 2/Bar Bar - Rear Stabilizer 11/16 Dia. (Requires D0ZX-4A343-A Link Assembly Insulator - Stabilizer Bar (5/8 & 11/16) DOZX-5A772-A C70Z-5493-C

13 Mustang Trans-Am Chassis Parts The following parts will continue to be serviced by Ford Parts Division: DOZX 1107-A DOZX 2001-A DOZX 2001-B DOZX 2B134-B DOZX 2B135-B DOZX 2B511-A DOZX 2B512-A DOZX 3304-A DOZX 5025-A DOZX 5310-B DOZX 5556-B D0ZX 5A772-A DOZX 5A772-B DOZX 5546-A DOZX 5557-A D0ZX 5997-A D0ZX 5997-A D0ZX-4A343-A Bolt - Front and rear hub ½ -20x3-3/8" Kit - Brake shoe and lining (single piston caliper) Kit - Brake shoe and lining (four piston caliper Bracket - Caliper mounting front (R.H o monng Bracket - Caliper mounting front (L.H.) Bracket - Caliper mounting rear (R.H. Bracket - Caliper mounting rear (L.H. ) Rod Assembly - Steering arm to idler arm Cross member assembly - No. 2 Spring - Front coil (720 lb./in. rate) Spring Assembly - Rear leaf (200 lb./in. rate) Bar - Stabilizer rear (11/16" dia, ) Bar - Stabilizer rear (5/8 dia.) Bracket - Track bar, frame Bracket - Track bar, axle Bushing - Rear spring (front eye - aluminum) Spacer - Rear spring bushing (front eye) Link Assembly -Rear stabilizer bar

17 June 30, 1972

in the 1970 Ford Car Shop Manual, Volume One, Chassis. It is strongly recommended that a Shop Manual be obtained and followed.

1970 Trans Am Mustang Front Disk brake instructions 1. The installation of this kit follows the standard procedures described in the 1970 Ford Car Shop Manual, Volume One, Chassis. It is strongly recommended