Rear end sag at max tongue weight?

[jzinckgra]

I have the non-fx4 Lariat and am planning on putting the Bilstein 5100's shocks on. I'm debating between setting the lift at Bilstein's 1.2 or 1.8" lift for the fronts. I have a two-place snowmobile trailer and measured the sag at 0.75" with one snowmobile inside (total weight ~2,000lbs). I also have a boat, not yet in my possession that weighs significantly more (6,000lbs). I don't know the tongue weights of either, but I am going to assume the boat will be 10% of the gross weight, so 600lb tongue weight. Does anyone know how much my rear-end will compress at that weight or the max (750lb)?

The stock difference between the rear vs front end rake is 3". If I install the 5100's at the 1.2" height, I'll have 1.8" in the rear to spare. If I install 5100s at 1.8", I have 1.2" to spare. Pretty sure the boat will squat the back end lower then the front of truck even if I set the 5100s at 1.2", but was hoping someone had some actual squat measurements at either 600 or 750lbs.

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[jzinckgra]

I have the non-fx4 Lariat and am planning on putting the Bilstein 5100's shocks on. I'm debating between setting the lift at Bilstein's 1.2 or 1.8" lift for the fronts. I have a two-place snowmobile trailer and measured the sag at 0.75" with one snowmobile inside (total weight ~2,000lbs). I also have a boat, not yet in my possession that weighs significantly more (6,000lbs). I don't know the tongue weights of either, but I am going to assume the boat will be 10% of the gross weight, so 600lb tongue weight. Does anyone know how much my rear-end will compress at that weight or the max (750lb)?

The stock difference between the rear vs front end rake is 3". If I install the 5100's at the 1.2" height, I'll have 1.8" in the rear to spare. If I install 5100s at 1.8", I have 1.2" to spare. Pretty sure the boat will squat the back end lower then the front of truck even if I set the 5100s at 1.2", but was hoping someone had some actual squat measurements at either 600 or 750lbs.

Had a couple guys from work sit on tailgate to estimate compression. Total weight was 520lbs. Rear end compressed 1.75".

 

[Frenchy]

I cant speak for stock suspension but I do want to ask this. Do you take your truck offroad at all? Even if its is the "Quote on Quote" light duty trails? If you do then I would suggest a lift kit over a leveling kit. If you dont go offroad then the Bilsteins will do just fine but I would suggest going with the lowest height setting available.

If you decide you want the actual Lift kit then I suggest Old Man EMU. Both on and offroad ride is nice and you can still tow the full capacity. I already have a few write ups on it including towing.

I suggest taking a read on it and getting an idea off of it.

Hope this helps

 

[jzinckgra]

I cant speak for stock suspension but I do want to ask this. Do you take your truck offroad at all? Even if its is the "Quote on Quote" light duty trails? If you do then I would suggest a lift kit over a leveling kit. If you dont go offroad then the Bilsteins will do just fine but I would suggest going with the lowest height setting available.

If you decide you want the actual Lift kit then I suggest Old Man EMU. Both on and offroad ride is nice and you can still tow the full capacity. I already have a few write ups on it including towing.

I suggest taking a read on it and getting an idea off of it.

Hope this helps

Thanks. No plans to off-road.

 

[EJH]

I'd go with the 1.2" setting and be conservative, IMHO.

My truck's rake front to back is 2" difference in height. I plan to replace the front suspension also, but not level/lift the front much, if any. I also tow, but do not have my travel trailer yet.

FYI, With 400 lbs in my truck's bed, the rear compressed 1/2". With 600 lbs on the hitch, I bet you see at least 3/4" drop.

 

[jzinckgra]

I'd go with the 1.2" setting and be conservative, IMHO.

My truck's rake front to back is 2" difference in height. I plan to replace the front suspension also, but not level/lift the front much, if any. I also tow, but do not have my travel trailer yet.

FYI, With 400 lbs in my truck's bed, the rear compressed 1/2". With 600 lbs on the hitch, I bet you see at least 3/4" drop.

Reread my above post. 520lbs compressed 1.75". I think I will set the bilsteins at 1.2". Fyi, my rake difference is 3"

 

[Msfitoy]

What is the correct maximum hitch weight rating? I see 750lbs here but Car and Driver shows it at 350lbs?

 

[Frenchy]

What is the correct maximum hitch weight rating? I see 750lbs here but Car and Driver shows it at 350lbs?

If you have a the drawbar or hitch installed it is 750 max. If you don't have it the it is 350 due to it being a bumper pull

 

[LoneRNGR]

I have the non-fx4 Lariat and am planning on putting the Bilstein 5100's shocks on. I'm debating between setting the lift at Bilstein's 1.2 or 1.8" lift for the fronts. I have a two-place snowmobile trailer and measured the sag at 0.75" with one snowmobile inside (total weight ~2,000lbs).

Other than installing different shock absorbers, you are not modifying the rear-end at all. Since the rear shock absorbers are not load-bearing, you will not see a big difference in your before and after measurements. So regardless of what you do in the front, the amount of sag in the back will remain close to the same.

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