Kenworth T400, T440, T450, T470, T600, T660, T680, T800, T880 Rubber Bushings 64" Springs
4" Width
| T400A, T400B, T450, T450B: 64" springs | 1988-03 |
| T600A, T600B, T800, T800B: changed from 64" to 59" springs in 2004 | 1985-04 |
| SRI | OEM |
A S.E. |
B L.E. |
Bushings | Capacity |
| 59-482 | HK48110-1449 | 32 1/8" | 32 1/8" | RB-249, RB-249 | 6,000 lb |
| TXL-592 | None | 33" | 33" | None | 2,200 lb |
Kenworth C500, K100, K300, W900, T300, T400, T450, T600, T800, T2000 Front Suspensions
Conversion to threaded bushings and pins is an option for increased durability.
In place of RB-249, use 327-434 pins with TB-68 bushings.
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