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Rancho RS77261 Suspension Shock Absorber - Rear
Rancho RS7MT Rear Shock for Super Duty
The Rancho RS7MT RS77261 is a monotube rear shock absorber tuned for on-road control and off-road stability. It is built for Ford Super Duty trucks running raised-height suspension setups, including applications with larger wheel and tire packages.
RS7MT Product Line Details
Rancho RS7MT shocks focus on heat dissipation, consistent damping, and durability in demanding terrain. This line uses a monotube design with an integrated dirt wiper sealing system, a hardened piston rod for corrosion and scuff resistance, and an internal rebound bumper to help smooth suspension movement over rough surfaces.
Key Features
- Monotube suspension shock absorber for rear axle applications
- Application tuned for precision on-road and off-road handling
- Heat-dissipating design for extreme off-road use
- Integrated dirt wiper sealing system helps keep debris out
- Hardened piston rod resists scuffs and corrosion
- Internal rebound bumper helps control ride harshness
- Extended length: 32.24 in; compressed length: 20.39 in
- Travel length: 11.85 in; body length: 19.41 in
- Upper mount: loop bushing mount with 5/8 in bushing ID and 1.5/16 in bushing OAL
- Lower mount: loop bushing and sleeve mount with 12 mm sleeve ID and 1.1/2 in sleeve OAL
Detailed Description
Rancho RS77261 is a rear suspension shock absorber for Ford F-250 Super Duty and Ford F-350 Super Duty trucks with specific raised-height suspension configurations. It is listed for 1999-2004 Ford F-250 Super Duty rear applications with 4.0 inches of rear lift, 1999-2004 Ford F-350 Super Duty rear applications with 2.5 inches of rear lift, 2005-2010 Ford F-250 Super Duty rear applications with a Rancho suspension system and 4.0 inches of rear lift, and 2011-2016 Ford F-250 Super Duty rear applications with 5.5 inches of rear raised height when used with Rancho RS66552B system(s). It also fits 2011-2016 Ford F-350 Super Duty rear applications with single rear wheels and 2.0 inches of rear raised height when used with Rancho RS66552B system(s). This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Address
- Excessive rear-end bounce on lifted Ford Super Duty trucks
- Reduced damping control after suspension height changes
- Heat buildup during demanding off-road driving
- Dust and debris intrusion around the shock shaft
- Ride instability with larger wheel and tire packages
Installation Notes and Tips
Verify rear ride height, axle configuration, and suspension system before ordering. This shock is listed for rear positions only and must match the lift height and system notes shown for each Ford F-250 Super Duty and Ford F-350 Super Duty application. Compare the upper and lower mounting dimensions to the original shock before installation. Part number RS77261 should be matched to the exact vehicle configuration for proper fitment.
Quality Assurance
Rancho RS7MT shocks are built around a monotube construction that supports heat dissipation and consistent damping performance in demanding use. The RS77261 part number is specified for defined Ford Super Duty rear applications, helping ensure application-specific fitment and repeatable suspension control.
| Brand | Rancho |
|---|---|
| Part Number | RS77261 |
| Position | RS7MT, Rear |
| 65126 | L1 |
| Body Length | 19.41 |
| Compressed Bumper Stop | No |
| Compressed Length | 20.39 |
| Dust Shield Included | No |
| Extended Bumper Stop | Yes |
| Extended Hydraulic Lockout | No |
| Extended Length | 32.24 |
| Lower Mounting Code | Ls26 |
| Lower Mounting Description | Loop bushing & sleeve mount - 12mm sleeve id x 1.1/2" sleeve oal |
| Parts Pack | None |
| Reserve Tube Diameter | 1.97 |
| Travel Length | 11.85 |
| Upper Mounting Description | Loop bushing mount - 5/8" bushing id x 1.5/16" bushing oal |
This part fits 54 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Ford | F-250 Super Duty | 4WD | Rear | with Rear Raised Height 5.5 (in); Use with Rancho RS66552B System(s); RS7MT | |
| 2016 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2016 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2016 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2015 | Ford | F-250 Super Duty | 4WD | Rear | with Rear Raised Height 5.5 (in); Use with Rancho RS66552B System(s); RS7MT | |
| 2015 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2015 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2015 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2014 | Ford | F-250 Super Duty | 4WD | Rear | with Rear Raised Height 5.5 (in); Use with Rancho RS66552B System(s); RS7MT | |
| 2014 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2014 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2014 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2013 | Ford | F-250 Super Duty | 4WD | Rear | with Rear Raised Height 5.5 (in); Use with Rancho RS66552B System(s); RS7MT | |
| 2013 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2013 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2013 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2012 | Ford | F-250 Super Duty | 4WD | Rear | with Rear Raised Height 5.5 (in); Use with Rancho RS66552B System(s); RS7MT | |
| 2012 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2012 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2012 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2011 | Ford | F-250 Super Duty | 4WD | Rear | with Rear Raised Height 5.5 (in); Use with Rancho RS66552B System(s); RS7MT | |
| 2011 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2011 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2011 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Single Rear Wheels (SRW); with Rear Raised Height 2.0 (in); Use with Rancho RS66552B System(s); RS7MT |
| 2010 | Ford | F-250 Super Duty | 4WD | Rear | with Rancho Suspension System; with Rear Raised Height 4.0 (in); RS7MT | |
| 2009 | Ford | F-250 Super Duty | 4WD | Rear | with Rancho Suspension System; with Rear Raised Height 4.0 (in); RS7MT | |
| 2008 | Ford | F-250 Super Duty | 4WD | Rear | with Rancho Suspension System; with Rear Raised Height 4.0 (in); RS7MT | |
| 2007 | Ford | F-250 Super Duty | 4WD | Rear | with Rancho Suspension System; with Rear Raised Height 4.0 (in); RS7MT | |
| 2006 | Ford | F-250 Super Duty | 4WD | Rear | with Rancho Suspension System; with Rear Raised Height 4.0 (in); RS7MT | |
| 2005 | Ford | F-250 Super Duty | 4WD | Rear | with Rancho Suspension System; with Rear Raised Height 4.0 (in); RS7MT | |
| 2004 | Ford | F-250 Super Duty | 4WD | Rear | Fitment: Rear Shock Absorber with 4.0 inch Raised Height; RS7MT | |
| 2004 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2004 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2004 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2003 | Ford | F-250 Super Duty | 4WD | Rear | Fitment: Rear Shock Absorber with 4.0 inch Raised Height; RS7MT | |
| 2003 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2003 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2003 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2002 | Ford | F-250 Super Duty | 4WD | Rear | Fitment: Rear Shock Absorber with 4.0 inch Raised Height; RS7MT | |
| 2002 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2002 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2002 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2001 | Ford | F-250 Super Duty | 4WD | Rear | Fitment: Rear Shock Absorber with 4.0 inch Raised Height; RS7MT | |
| 2001 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2001 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2001 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2000 | Ford | F-250 Super Duty | 4WD | Rear | Fitment: Rear Shock Absorber with 4.0 inch Raised Height; RS7MT | |
| 2000 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2000 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 2000 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 1999 | Ford | F-250 Super Duty | 4WD | Rear | Fitment: Rear Shock Absorber with 4.0 inch Raised Height; RS7MT | |
| 1999 | Ford | F-350 Super Duty | Standard Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 1999 | Ford | F-350 Super Duty | Extended Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
| 1999 | Ford | F-350 Super Duty | Crew Cab Pickup | 4WD | Rear | with Rear Raised Height 2.5 (in); RS7MT |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.