The defect
A SPRING LEAF MAY FRACTURE THROUGH THE CENTER HOLE SECTION. THIS OCCURS DUE TO LOOSENING OF THE SPRING-TO-AXLE MOUNTING ATTACHMENT FOLLOWING EXTREME FLEXING OF THE SPRING LEAVES. THIS KIND OF FRACTURE MAKES THE REMAINING TWO LEAVES VULNERABLE TO PROGRESSIVE FRACTURE.
The remedy
VEHICLES WILL HAVE THE THREE-LEAF SPRING ASSEMBLY REPLACED WITH AN IMPROVED UNIT.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| International Harvester 4270 | 1981, 1982, 1983, 1984 |
| International Harvester 4370 | 1981, 1982, 1983, 1984 |
| International Harvester 9670 | 1981, 1982, 1983, 1984 |
| International Harvester S2275 | 1981, 1982, 1983, 1984 |
Components: SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:LEAF
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| International Harvester 4270 | 1981 | 0 | 1 |
| International Harvester 4270 | 1982 | 0 | 1 |
| International Harvester 4270 | 1983 | 0 | 1 |
| International Harvester 4270 | 1984 | 0 | 1 |
| International Harvester 4370 | 1981 | 0 | 1 |
| International Harvester 4370 | 1982 | 0 | 1 |
| International Harvester 4370 | 1983 | 0 | 1 |
| International Harvester 4370 | 1984 | 0 | 1 |
| International Harvester 9670 | 1981 | 0 | 2 |
| International Harvester 9670 | 1982 | 0 | 2 |
| International Harvester 9670 | 1983 | 0 | 2 |
| International Harvester 9670 | 1984 | 0 | 2 |
| International Harvester S2275 | 1981 | 0 | 1 |
| International Harvester S2275 | 1982 | 0 | 1 |
| International Harvester S2275 | 1983 | 0 | 1 |
| International Harvester S2275 | 1984 | 0 | 1 |
Other suspension recalls in 1983
9 of the 140 recall campaigns reported to NHTSA in 1983 concerned the suspension; INTERNATIONAL HARVESTER filed 49 campaigns in all.
| 83V136000 20 Dec 1983 | THOMAS BUILT BUSES, INC. |
| 83V128000 5 Dec 1983 | PRESVAC SYS (BURL) LTD. |
| 83V076000 19 Aug 1983 | SHELLER-GLOBE CORPORATION |
| 83V066000 7 Jul 1983 | GENERAL MOTORS CORP. |
| 83V051000 5 May 1983 | PRESVAC SYS (BURL) LTD. |
| 83V042000 19 Apr 1983 | GENERAL MOTORS CORP. |
| 83V032000 22 Mar 1983 | FORD MOTOR COMPANY |
| 83V023000 1 Mar 1983 | PACCAR, INCORPORATED |
NHTSA recalls (public domain) · all recalls of 1983