Peterbilt non-LCF 365, 367, 388, 389 Set Forward Axle Springs (14.6 & 20k Axles)
4" Width Springs (Not for Low Cab Forward); 14,600 lb and 20,000 lb axles only -- set forward axle position
| 365, 367 | 2006-Present |
| 388, 389 | 2006-Present |
14,600 lb axle springs have a 1.75" diameter eye; 20,000 lb axle springs have a 2.08" diameter eye.
| SRI | OEM |
A S.E. |
B L.E. |
Bushings | Capacity |
| 59-546 | B81-6011-001 | 25 1/8" | 34 3/8" | RB-295, RB-328 | 7,300 lb, 1.75" Eye |
| 59-556 | B81-6011-002 | 25 1/8" | 34 3/8" | RB-295, RB-295 | 7,300 lb, 1.75" Eye |
| 59-558 | B81-6011-003 | 25 1/8" | 34 3/8" | TB-77, TB-77 | 7,300 lb, 1.75" Eye |
| 59-586 | B81-6010-001 | 25 1/8" | 34 3/8" | RB-308, RB-308 | 10,000 lb, 2.08" Eye |
| 59-542 | B81-6010-002 | 25 1/8" | 34 3/8" | RB-308, RB-324 | 10,000 lb, 2.08" Eye |
| 59-588 | B81-6010-003 | 25 1/8" | 34 3/8" | TB-81, TB-81 | 10,000 lb, 2.08" Eye |
| TXL-5914 | None | 26 1/8" | 35 1/4" | -- | 2,200 lb |
Peterbilt Conventional/Cab Over Front Suspension (4'' Spring)
RB-295, RB-308: 7 1/2" Length
RB-328, RB-324: 6 11/16" Length
For increased durability, conversion to threaded bushings and pins is an option.
In place of RB-295 bushing use TB-77 with 327-540 pin.
In place of RB-328 bushing use TB-77 with 327-544 pin.
In place of RB-308 bushing use TB-81 with 327-540 pin.
In place of RB-324 bushing use TB-81 with 327-544 pin.
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