M1R Monotube Rear Shocks | 2.5-4" | Chevy/GMC Avalanche (02-06)/Half-Ton Suburban (69-91)

Marsoni

M251S

$174.97

Get it in 3 business days with 1 day shipping. Friday, May 29

M1R Monotube Rear Shocks | 2.5-4" | Chevy/GMC Avalanche (02-06)/Half-Ton Suburban (69-91)Unmatched Control. Maximum Performance: Rough Country's M1R Monotube Shocks with External Reservoir deliver the perfect blend of control, comfort, and endurance. Designed to handle the harshest terrains and heaviest loads, the M1R ensures your ride performs at its peak, on or off the road. Built for Heat, Engineered for Pressure: Featuring an advanced 46mm monotube design and external reservoir, the M1R delivers faster heat dissipation and fade free

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I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).

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Reviewed in the United States on September 8, 2025