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Old 06-27-2014, 08:52 AM   #1
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Air bags or Blocks?

My friend has 2012 30' Winne on a Ford F53. He carries a 600# golf cart on
a custom carrier with 3- 2" receivers to distribute the weight across the full
width of the rear axle. Want would be the best way to level the MTH- blocks
or air bags?
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Old 06-27-2014, 10:14 AM   #2
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I'll assume that he has had the two receiver hitches properly engineered to handle the weight safely. Many F-53 chassis have the end extended to lengthen and it's not as strong as at the end as the original frame rails. The amount of 'bounce' that far back behind the rear axle also could create pretty strong leverage forces.

If you are talking about leveling the chassis for travel, stronger springs or air bags would be the way to go rather than spacer blocks.

BUT.... Has he weighed the RV with it loaded for travel? 600 lbs. at the tail of the rig could be over limits of his Gross Vehicle Weight. Sagging springs or a low tail could be the indication of this. What is his GAWR: Gross Axle Weight Rating for the rear axle?
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Old 06-27-2014, 10:36 AM   #3
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I agree... Re-spring (there are shops that specialize in this) or airbags.
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Old 06-27-2014, 10:56 AM   #4
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Chances are his hitch is rated at 500# on that new of a rig. That may be misleading if he is thinking "that is only 100#'s over hitch weight limit, and I added 2 hitches". However; what he has actually done is move the weight much further back than the end of the receiver with the golf cart well behind the receiver, this creates a fulcrum effect, the rear axle is the pivot and the the steering is now lighter, not good. Of course if it is a 350# hitch it gets even scarier.
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Old 06-27-2014, 12:32 PM   #5
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As stated, if it's within the limits and only then I'd use the air bags. If or when you are not carrying the GC you can still level your coach or take it back to stock. If you increase the leaf springs you can't change what you did to the springs very easily. I've had two set of air bags and never had any problems with them. They are primarily used not to increase weight capacities but to level your unit.

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Old 06-28-2014, 01:37 PM   #6
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You have to weigh it at all wheels and redistribute the load to keep enough weight on the front axle. It may seem ok at first but suddenly in a wind gust or when a semi passes you may find out differently. A few bad potholes of frost heaves may prove out if the rear frame extensions are up to the load too which may not be pretty. You have to look first at the capacity of the rig and Winnebago Customer Service Toll Free Line will be one of your better sources of information.
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Old 06-30-2014, 06:48 AM   #7
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It appears the frame extensions are more robust on the newer Fords, perhaps even Ford installed. Attached is an old thread I had initiated due to concerns about my 1996 frame extensions.
Ford Chassis OAL
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Old 06-30-2014, 09:21 AM   #8
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Added info: The OP reports the RV was weighed with GC on bumper. Surprise, it was right at GVW and 1,300 # over rear axle capacity. Air bags or springs can't erase that, helium balloons on rear axle, put GC on front bumper, or a trailer sounds like the only solution.
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