Front Suspension
This page covers the front suspension. There is a suspension overview here. The buttons below link to other suspension-related pages:
Front Upright
| ID | Left Side | Right Side | Description | Material |
|---|---|---|---|---|
| A | SLC-FR-ST-ARM-01L | SLC-FR-ST-ARM-01R | Steering Arm | Aluminum |
| B | SLC-FR-TP-01L | SLC-FR-TP-01R | Upright Top | Aluminum |
| C | SLCFRLBJP | Same*** | Upright | Aluminum |
| D | SLCRRLBJP | Same | Lower Ball Joint Plate | Steel |
***Note that when I machined the uprights for the improved wheel hubs a small chamfer was added to the outside edge of the upright, so my uprights are handed.
| ID | Qty. | Description | Anti Sieze | Torque (foot-pounds) |
|---|---|---|---|---|
| F1 | 2 | 3/8"-16 x 2" Socket Head Cap Screw | Yes* | 49 |
| F2 | 2 | 3/8" Socket Cap Washer | ||
| F3 | 2 | 3/8" Grade 8 Washer | ||
| F4 | 2 | 3/8" Grade 8 Nyloc | 39 | |
| F5 | 3 | 7/16"-14 x 1-1/4" Socket Head Cap Screw | Yes | 61 |
| F6 | 3 | 7/16" Socket Cap Washer | ||
| F7 | 4 | 7/16"-14 x 2" Socket Head Cap Screw | Yes | 61 |
*Note that the Steering Arm (A) is threaded and that a washer and lock nut is used as well. The first 1-3/4" of the (F1) bolts should be coated with anti-seize and torqued. Any anti-sieze that is on the threads sticking out of the bottom for the Steering Arm (A) should be removed with acetone. The washers and nylocs should then be added and torqued.
Front Control Arms
| ID | Left Side | Right Side | Description | Material |
|---|---|---|---|---|
| A | n/a | Same | Top Front Control Arm | Aluminum |
| B | SLC-FR-LCA-01RL | Same | Bottom Front Control Arm | Aluminum |
| C | n/a | Same | Suspension Mounting Bracket Assembly | Steel |
Note that the upper control arms don't appear to have part numbers and it appears that they are completely symetrical (i.e., you can swap left to right and from top to bottom).
| ID | Qty. | Description | Anti Sieze | Torque (foot-pounds) |
|---|---|---|---|---|
| F1 | 6 | Male Heim Joint ???5/8"-18??? | Yes | n/a |
| F2 | 6 | Nut | NO! | ??? |
| F3 | 12 | Aluminum Safety Washer | ||
| F4 | 24 | 1/2" Grade 8 Washer | 39 | |
| F5 | 2 | Shoulder Screw | ??? | |
| 2 | 1/2"-13 Grade 8 Nut | |||
| 1 | ??? Grade 8 Washer (it's bent up) | |||
| F6 | 8 | 3/8"-16 Grade 8 Washer | ||
| F7 | 8 | 3/8"-16 Grade 8 Hex Head Screw | No |
Front Hubs
TBD - copy several blog posts on this topic here.
| Qty. | Part Number | Description | Unit Price | Ext. Price |
|---|---|---|---|---|
| 2 | 20018 | Hoosier C4 Billet Front Wheel Hub Assembly | $699.00 | $1,198.00 |
| 1 | n/a | Machine Front Uprights and Hubs | $440.00 | $440.00 |
| 1 | n/a | Powdercoat Four Lower Ball Joint Plates | $135.00 | $135.00 |
| 1 | P28782 | Socket Cap Washer, Zinc Finish, Steel, 7/16 (Pack of 100) | $79.07 | $79.07 |
| 2 | PT1357 | ACDelco GM Original Equipment Multi-Purpose Pigtail | $14.53 | $29.06 |