Diff Drop - Anybody here do one?

BladeRanger

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The wear is one of my concerns. I'm also concerned with the angle at full droop as my dumb ass installed the Eibach kit set to 3.75" of lift!
I got the superlift suspension and came with diff drop. I had it for awhile now and no issue but I haven't taken it to a hard-core off roading. The shop that installed said he would be worried if it wasn't for the diff dropped. The superlift is about 3.5 inch. I'm watching this thread as well since planning on replacing my front Fox to Eibach in the future. How do we measure the angle of the drive shafts? I should have taken a pics before and after.
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Dr3wDrop

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I got the superlift suspension and came with diff drop. I had it for awhile now and no issue but I haven't taken it to a hard-core off roading. The shop that installed said he would be worried if it wasn't for the diff dropped. The superlift is about 3.5 inch.
The superlift diff drop looks the same as BDS and very similar to that ebay kit with both driver side and passenger side drop.
 

BladeRanger

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The superlift diff drop looks the same as BDS and very similar to that ebay kit with both driver side and passenger side drop.
Yea, the superlift is the same as BDS, I'll take a pics next time on a level ground to show the angle of the drive shafts.
 
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I got the superlift suspension and came with diff drop. I had it for awhile now and no issue but I haven't taken it to a hard-core off roading. The shop that installed said he would be worried if it wasn't for the diff dropped. The superlift is about 3.5 inch. I'm watching this thread as well since planning on replacing my front Fox to Eibach in the future. How do we measure the angle of the drive shafts? I should have taken a pics before and after.
I think if you are parked on level ground you can take some measurements to get your driveshaft angle, if you don't have a protractor.
 

BladeRanger

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I think if you are parked on level ground you can take some measurements to get your driveshaft angle, if you don't have a protractor.
Thanks, I'll try measuring it next time had a chance.
 

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I will be installing the front Eibach coilovers next week, only going up 2" to level the front with my RV hitch. Should I be concerned with driveshaft angle or is 2" good? I have the Eibachs in the rear without spacers.
 

P. A. Schilke

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I will be installing the front Eibach coilovers next week, only going up 2" to level the front with my RV hitch. Should I be concerned with driveshaft angle or is 2" good? I have the Eibachs in the rear without spacers.
Hi Jesse,

Let your calibrated assometer tell you if you created a problem. Some lifts have and some have not. Some of this depends on your tolerance for some vibrations. When it comes to driveline angle it is not rated in inches of lift. It is angle of the new driveshaft angle relative to the rear axle pinion. Let the dealer handle, but be prepared for their balk as you moded the lift.

Best,
Phil
 

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If I am reading this right, the diff drop only changes the front drive shaft angle. It does not change the cv axle angle?
 
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JesseS

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Hi Jesse,

Let your calibrated assometer tell you if you created a problem. Some lifts have and some have not. Some of this depends on your tolerance for some vibrations. When it comes to driveline angle it is not rated in inches of lift. It is angle of the new driveshaft angle relative to the rear axle pinion. Let the dealer handle, but be prepared for their balk as you moded the lift.

Best,
Phil
Thanks Phil, as I have zero vibration now, and don't want any, I will be 'feeling' for it, and take care of it if it shows up. I don't like drop hitches, and want to level the truck in any case, and it is exactly 2" lower than my hitch so need to level that tow bar.
 

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I will be installing the front Eibach coilovers next week, only going up 2" to level the front with my RV hitch. Should I be concerned with driveshaft angle or is 2" good? I have the Eibachs in the rear without spacers.
I've been running on Eibach Pro Lift CO with 2.5" front lift 1" rear for 84,000 miles without a diff drop...I think you'll be ok...
 
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If I am reading this right, the diff drop only changes the front drive shaft angle. It does not change the cv axle angle?
By lowering the front diff., you make the CV angle less extreme than when the suspension is lifted without the drop. You're essentially moving the differential down to lessen the angle of the CVs.
 

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That’s what I was thinking. So it looks like the ebay kit you installed and the bds & superlift lower both driver and passenger side. The peak suspension kit only lowers the drivers side and front diff
 
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asix

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The wear is one of my concerns. I'm also concerned with the angle at full droop as my dumb ass installed the Eibach kit set to 3.75" of lift!
I'm in the same boat as you. Eibach at 3.75" and fabtech UCA.

I'm considering these three options.

1) Stay at 3.75" and do a diff drop
https://www.peaksuspension.com/coll...ak-suspension-ford-ranger-1-differential-drop

2) Pay a shop to compress the suspension down to 3.0" from 3.75 and install without a diff drop.

3) Pay a shop to compress the suspension down to 3.0" from 3.75 and install the diff drop.
 
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Dr3wDrop

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I ended up ordering the Ebay kit. I liked that it drops both driver and passenger mounting points equally. After looking into other drop kits that come with suspension lifts, they all drop both sides. Not just the drivers side like Peak. The only true benefit to the peak kit is there is no cutting involved. Just drilling a second hole.

I will post pictures after the install.
 

Dr3wDrop

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Okay so that diff drop is not for the faint of heart. Took several hours and you better have a right angle drill and good bits. I will post pictures tomorrow.
 
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