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How much drop should you have?

jimh406
Explorer III
Explorer III
Just wondering what people think is an appropriate amount of drop in the rear to keep the headlights at an acceptable adjustment? Or if you have other reasons for no drop, I'd be interested in knowing that as well.

I got my Talon Torklift tie downs on yesterday. Yeah, I've been busy to keep from using the new to me truck. BTW, I'm really happy with the ease of install and shocked about how light they are! I also finished the grinding necessary to use the Ford hitch with my 2.5 adapter and extension. For my application, I get bonus extra aluminum plates!

Now back to the point. I plan to put the camper on in a bit assuming the new drw hinges work as expected and the install goes ok. I plan to take before/after measurements bone stock just to see what it looks like. Assuming that works, I expect to report back later.

What I don't have a feel for is how much drop will I have as I add extra weight to the camper. I have options with the parts available: Energy Suspension bump stops, and Firestone air bags.

Gut feel at the moment is that I won't really need the air bags.

'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.

NRA Life Member, CCA Life Member
8 REPLIES 8

Super_Dave
Explorer
Explorer
If I use no aides I have a 4" - 5" drop with camper and boat connected. I use the air bags to raise the rear enough to provide slight engagement with the overload springs. I think this probably translates to a couple inches of drop with the aide of the air bags.
Truck: 2006 Dodge 3500 Dually
Rig: 2018 Big Country 3155 RLK
Boat: 21' North River Seahawk

AH64ID
Explorer
Explorer
I don't use a TC, but I do use airbags and load my truck up to 6-7K lbs on the rear axle from time to time, and nearly 6K on every camping trip.

I have found that allowing the rear suspension to squat about 1-1.5" and then hold there provides with better stability, cornering, smother ride, and steering/headlight aiming.

I do have a 1" level, so with an OEM front end I would let it drop 1.5"-2".

Whatever you do, do not add air until you are back to your empty height. It will make for a very rough ride.
-John

2018 Ram 3500-SRW-4x4-Laramie-CCLB-Aisin-Auto Level-5th Wheel Prep-Titan 55 gal tank-B&W RVK3600

2011 Outdoors RV Wind River 275SBS-some minor mods

bigfootford
Nomad II
Nomad II
Air bags level mine. Onboard compressor makes it easy to adjust for camper on or off and mild adjustments when setting up in an unlevel camp site.

Jim
2000 2500 9.6 Bigfoot,94 F250, Vision 19.5, Bilstein shocks, air bags/pump, EU2000, PD 9260, Two Redodo 100ah Mini's, Aims 2500 Conv/Inv, 200W. solar, Morningstar Sunsaver 15A/ display panel, Delorme/laptop for travel, Wave-3 heat.

Rich1961
Explorer
Explorer
jimh425 wrote:
FWIW, I have just over a 3 inch drop at the rear tie down compared to without camper. In my case, that's going to be weight too much for my liking as is. The rear tie down seems very low. On another note, adding the bump stops made neglible impact, so I take it that the overloads are minimally engaged at the moment.


Jim,
The Energy Suspension Bump Stops are to soft. You need Torklift StableLoads. I tried the Energy Suspension Bump Stops, and they weren't even close to getting the overload springs to engage as soon because they have to collapse before any real pressure is placed on the spring.
Rich
2016 Chevrolet/Duramax 3500HD Dually Crew Cab B&W RVK 3700 5th Wheel Hitch
2014 Arctic Fox 29-5T

Reality_Check
Nomad II
Nomad II
Ours = zero.


Reality is, most have some. Is yours acceptable? Put it this way; would you want to drive at your oncoming headlights? Can you see the road like you're supposed to? There's your answer.
'16 F550 CC, 4x4 with Link Ultraride air suspension, '18 AF 1150. Just so we can play with our snowmobiles, dirt bikes and fishing boat. And new 20' tag along...kayaks, bikes, mc's and extra water and food!!

jimh406
Explorer III
Explorer III
FWIW, I have just over a 3 inch drop at the rear tie down compared to without camper. In my case, that's going to be weight too much for my liking as is. The rear tie down seems very low. On another note, adding the bump stops made neglible impact, so I take it that the overloads are minimally engaged at the moment.

'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.

NRA Life Member, CCA Life Member

_DJ_1
Explorer II
Explorer II
I think you're just going to have to try it. My truck has pretty limber rear springs as I want the articulation for off road. The TC and especially if I have a trailer too the rear end squats enough where I get flashed for high beams a lot.

A 10" phillips screwdriver adjusts the headlights in short order. Just count the revolutions needed so you can put it back to stock when empty.
'17 Class C 22' Conquest on Ford E 450 with V 10. 4000 Onan, Quad 6 volt AGMs, 515 watts solar.
'12 Northstar Liberty on a '16 Super Duty 6.2. Twin 6 volt AGMs with 300 watts solar.

cewillis
Explorer
Explorer
Different class of truck and camper, but I have no drop at all. That's to maintain off-road clearance, and because I could.
Cal