Shocks - Fortec

KIT NUMBER
RS6427
RS6440
RS6475
RS6476
RS6481
RS6482 (B)
RS6488 (B)
RS6489 (B)
RS6503
RS6505
OPTIONAL RS6505 3
RS6506
RS6507B
OPTIONAL RS6507B 3
RS6509B
OPTIONAL RS6509B 3
RS6517B
OPTIONAL RS6517B 3
RS6510 (B)
RS6511 (B)
RS6514 (B)
RS6515 (B)
RS6543 (B)
RS6545 (B)
OPTIONAL RS6545 (B) 3
RS6547 (B)
OPTIONAL RS6547 (B) 3
RS6548 (B)
OPTIONAL RS6548 (B) 3
RS6549 (B)
OPTIONAL RS6549 (B) 3
RS6550 (B)
OPTIONAL RS6550 (B) 3
RS6551 (B)
OPTIONAL RS6551 (B) 3
RS6555 (B)
RS6556 (B)
OPTIONAL RS6556 (B) 3
RS6557 (B)
OPTIONAL RS6557 (B)
RS6558B
OPTIONAL RS6558B
RS6559B
RS6560 (B)
RS6561 (B)
RS6568 (B)
RS6570
RS6573 (B)
RS6577B
RS6579B
RS6581B
RS6582 (B)
RS6583 (B)
OPTIONAL RS6583 (B)
RS6588 (B)
RS6589 (B)
RS6592
RS6593
RS6594B
RS6595B
RS6596B
COMPATIBLE WITh
OE WhEELS1 yES
yES
yES
yES
yES
yES
yES
yES
yES
yES
-
yES
yES
-
yES
-
NO
-
yES
yES
yES
yES
yES
NO
-
NO
-
yES
yES
yES
-
yES
-
yES
-
yES
NO
-
NO
-
NO
-
NO
16” Only
16” Only
yES
yES
yES
yES
yES
yES
yES
yES
-
yES
yES
yES
yES
yES
yES
yES
FOOTNOTES
1 - Designates when the OEM wheel is compatible with the applicable Rancho ®
suspension. The development or optional tire may not be compatible with
the OEM wheel.
2 - Trimming or modification may be required to provide proper clear
ance for the development wheel and tire. Actual tire size varies
between manufacturers.
3 - Use of optional wheel and tire will require trimming or modification.
Actual tire size varies between manufacturers.
4 - RS6545, RS6547 - vehicles with OEM 17” wheels cannot use 16”
wheels or smaller
5 - RS6558B requires 4.5” of backspacing on 16”, 17” and 18” wheels.
WHEEL AND TIRE CHART
DEVELOPMENT TIRE 2
SIZE ACTUAL SIZE 1 (in)
285/75/R16 33x11.3
33x12.5xR15 32.7x12.4
33x12.5xR15 32.7x12.4
33x12.5xR15 32.7x12.4
285x75xR16 33x11.3
285x75xR16 33.1x11.3
285x75xR16 33.1x11.3
285x75xR16 33.1x11.3
33x12.5xR15 32.7x12.4
33x12.5xR15 32.8x12.5
35x12.5xR15 34.8x12.5
33x12.5xR15 32.8x12.5
35x12.5xR18 34.8x12.5
37x12.5xR18 36.3x12.8
35x12.5xR18 34.8x12.5
37x12.5xR18 36.3x12.8
35x12.5xR18 34.8x12.5
37x12.5xR18 36.3x12.8
285x70xR17 32.8x11.5
325x60xR20 35.5x13
325x60xR20 35.5x13
285x70xR17 32.8x11.5
285x75xR16 33.0x11.3
285x75xR16 33.0x11.3
35x12.5xR17 34.9x12.9
285x75xR16 33.0x11.3
35x12.5xR17 34.9x12.9
285x75xR16 33.0x11.3
35x12.5xR17 34.9x12.9
285x75xR16 33.0x11.3
35x12.5xR17 34.9x12.9
285x75xR16 33.0x11.3
35x12.5xR17 34.9x12.9
285x75xR16 33.0x11.3
35x12.5xR17 34.9x12.9
285x75xR16 33.1x11.3
37x12.5xR17 36.9x13.4
40x13.5xR17 39.8x14.6
37x12.5xR17 36.9x13.4
40x13.5xR17 39.8x14.6
325x60xR20 35.5x13
37x12.5xR20 36.6x12.5
285x70xR17 33.1x11.3
265x75xR16 31.7x10.5
265x75xR16 31.8x10.5
285x75xR16 33.0x11.3
33x12.5xR15 32.7x12.4
35x12.5xR17 34.8x12.5
37x12.5xR17 37x12.9
37x12.5xR17 37x12.9
315x70xR17 34.5x12
315x70xR17 34.5x12
315x70xR17 34.5x12
35x12.5xR17 34.9x12.5
35x12.5xR18 34.8x12.5
35x12.5xR18 34.8x12.5
265x75xR16 31.8x10.5
265x75xR16 31.8x10.5
35x12.5xR18 34.8x12.5
35x12.5xR18 34.8x12.5
245x75xR17 31.6x9.8
DEVELOPMENT WhEEL 2
SIZE (in) BACKSPACING (in)
16x8 4.5
15x8 3.6
15x8 5.0
15x8 5.0
16x8 4.5
16x8 4.5
16x8 4.5
16x8 4.5
15x8 3.8
15x8 3.8
15x8 3.8
15x8 3.8
18x9 4.5
18x9 4.5
18x9 4.5
18x9 4.5
18x9 4.5
18x9 4.5
17x8.5 6.3
20x9 6.3
20x9 6.3
17x8.5 6.3
16x8 4.5
16x8 4 4.5
17x8 4 4.5
16x8 4 4.5
17x8 4 4.5
16x8 4.5
17x8 4.5
16x8 4.5
17x8 4.5
16x8 4.5
17x8 4.5
16x8 4.5
17x8 4.5
16x8 4.5
17x10 5.0
17x9 6.0
17x10 5.0
17x9 6.0
20x9 5.0 5
20x9 5.0 5
17x9 4.5
16x7 5.0
16x7 5.0
16x8 4.5
15x8 3.6
17x8.5 5.0
17x8 6.3
17x8 6.3
17x8 4.5
17x8 5.5
17x8 5.5
17x8 4.5
18x9 6.0
18x9 6.0
16x8 5.5
16x8 5.5
18x9 6.0
18x9 6.0
17x7.5 6.0
TOTAL
BACKSPACING (in)
-
-
-
-
-
-
-
-
-
-
-
-
5.9
-
5.9
-
5.9
-
-
7.3
-
-
-
-
-
-
-
-
5.9
-
-
-
-
-
-
-
-
7.4
-
7.4
-
6.0
5.3
-
-
-
-
-
7.3
7.3
5.5
-
6.5
6.5
5.7
6.7
-
-
6.7
6.7
-
Tire
219