Gas-Magnum Shock Absorber
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Monroe Gas-Magnum Shock Absorber

Part No. 34985 Warranty Details  

See if this part fits a specific vehicle.

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The Monroe® Gas-Magnum® truck shock absorber is designed for mid to full size, hard working pick-up trucks and vans. These units provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1 inch bore shocks, Monroe® Gas-Magnum® truck shocks work more efficiently with less effort.

Product Features:
  • 1-3/8 inch Bore: Lower operating pressure than standard 1 inch bore units
  • 2 inch Reserve Tube: More fluid for more consistent performance.
  • 5/8 inch Piston Rod: Heavy-duty nitrocarburized rod for long service life. On non-dust shield units only
  • All Weather Fluid: Contains special modifiers to reduce friction and ensure smooth rod reaction.
  • Full Displaced Valving: Better valving range on both the compression and extension cycles of the unit for a smooth comfortable ride.
  • Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration - on most applications
  • Sintered Iron Piston: Stronger than traditional metals, enhances durability for longer service life.
  • Special Seal: 'Self-lubricating' fluid seal designed to retain gas without excessive wear or friction.
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Compressed Length:16.125 in
Dust Shield:Yes
Extended Length:26.750 in
Parts Pack(s):None
Travel Length:10.625 in

REVIEW SNAPSHOT®

by PowerReviews
MonroeGas-Magnum Shock Absorber
 
4.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 2 customers

Displaying reviews 1-2

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(1 of 1 customers found this review helpful)

 
4.0

Good Quality for price!

By 

from Colorado

About Me Auto Enthusiast, Truck Enthusiast

Pros

  • Better Than Stock
  • Durable
  • High-Performance

Cons

  • Slight Modification
  • Tight Fit On Driver Rear

Best Uses

  • 1995 Gmc K2500 350ci
  • Large Cars
  • Trucks

Comments about Monroe Gas-Magnum Shock Absorber:

Put these on a 1995 GMC K2500 that i use for work. Good quality and Not hard to install. Tight fit on driver side rear shock. and you may need to grind down some of the metal bushings. Good Product overall though.

  • Was this a gift?:
  • No

(5 of 6 customers found this review helpful)

 
5.0

great shock

By 

from keene nh

About Me Auto Enthusiast, DIY, Truck Enthusiast

Pros

  • Durable
  • Easy To Use
  • Heavt duty

Cons

    Best Uses

    • Trucks

    Comments about Monroe Gas-Magnum Shock Absorber:

    This is a great shock for the money. Before I put these in truck its was bouncy even with me walking in the bed (I'm 250), after I put these in I was jumping on bumper to see if it still bounced and didn't do it at all.very good shock in my opinion.

    • Was this a gift?:
    • No

    Displaying reviews 1-2

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    Do you have questions about this product?

     

    Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

    4 Questions | 5 Answers
    Displaying questions 1-4
    • Q:

      is the same shock front & rear? 34985
      Asked on 12/15/2014 by Frank the bear from north wales, pa.

      1 answer

      • CUSTOMER CARE

        A:

        Hi Frank, good question! But no, this is for rear suspension only. Please provide us with the details of your application (including the year, make and model) and I will be happy to provide you with the correct product that can be used if available.

        Answered on 12/16/2014 by Solomon
    • Q:

      I just replaced my factory shocks on my 1990 GMC shortbed stepside (260 miles) with Monroe Gas Magnums and the the ride to be quite hard and feel every little bump. Should Ii have gone with the cheaper gas Matic LT?
      Asked on 1/27/2013 by Gus from McDonough, Ga.

      2 answers

      • CUSTOMER CARE

        A:

        Sorry, without the presence of your vehicle we would not be able to properly diagnose it nor provide you with a 100% answer. We would suggest that you take your vehicle to a certified mechanic for further diagnosis. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

        Answered on 1/28/2013 by Steve from AAP
      • A:

        Any full size short bed in the GM brand is to light in the rear to get a smooth ride with the magnum shock. the Matic LT will give you a better ride. The magnum is to stiff and is better suited for long bed fleet side trucks or 2500s. If you tow heavy trailers a lot with a short bed then the magnum would give a better ride and also helps control trailer sway.

        Answered on 3/26/2015 by GAP Wrench from Pensacola Fla
    • Q:

      i have a 99 chevy crew cab dually 3500 is this shock good for my truck ?
      Asked on 6/20/2012 by Anonymous

      1 answer

      • CUSTOMER CARE

        A:

        Yes, this Monroe Gas-Magnum Shock Absorber - part# 34985 should be a good replacement for your 1999 Chevy Crew Cab. All Weather Fluid which contains special modifiers to reduce friction and ensure smooth rod reaction. Full Displaced Valving for better valving range on both the compression and extension cycles of the unit for a smooth comfortable ride. Sintered Iron Piston which is stronger than traditional metals, enhances durability for longer service life. Nitrogen Gas Charged for improved ride and handling, helps maintain tire to road contact by reducing aeration. 2" Reserve Tube for more fluid and for more consistent performance. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

        Answered on 6/21/2012 by Vincent from AAP
    • Q:

      what is the biggest differance between this shock and the monroe for 19.00?
      Asked on 3/19/2010 by roscoe from battle creek, mi.

      1 answer

      • CUSTOMER CARE

        A:

        If you could provide us with the year, make, model and engine size of your vehicle we would be more than happy to see if we carry the right part you are looking for.

        Answered on 5/5/2010 by Rose from AAP
    Displaying questions 1-4

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