Eibach springs to lift rear for load?

[Raptor404]

Since the Geiser's were not in stock (I too ordered rears yesterday), I installed the Eibach's front and rear. Height was perfect. The reason being that the Raptor was getting shipped out to Denver for a camper. I knew it was going to sag. But it sagged a lot!! Drove it 2000 miles back home. Great drive. I have the Airlift bags at home but did not install them as I was going to wait and see. But I think having 1000+ lbs on the back 24/7, even with the Geiser springs, it will still sag. I am sure with the bags I can get the truck rear higher. Glad to hear Airflit will be coming out with the 5000 lbs bags soon.
Quick question... anyone here replace their rear springs at home? I paid a local shop to replace all 4 springs with the Eibach. I am going to leave the front springs in place, but I would like to save money and change the rears once the Geiser comes in. The rears "look" pretty straight forward not needing to remove any suspension arms/links, etc. Any insight? Thanks

 

[wmflyfisher]

Since the Geiser's were not in stock (I too ordered rears yesterday), I installed the Eibach's front and rear. Height was perfect. The reason being that the Raptor was getting shipped out to Denver for a camper. I knew it was going to sag. But it sagged a lot!! Drove it 2000 miles back home. Great drive. I have the Airlift bags at home but did not install them as I was going to wait and see. But I think having 1000+ lbs on the back 24/7, even with the Geiser springs, it will still sag. I am sure with the bags I can get the truck rear higher. Glad to hear Airflit will be coming out with the 5000 lbs bags soon.
Quick question... anyone here replace their rear springs at home? I paid a local shop to replace all 4 springs with the Eibach. I am going to leave the front springs in place, but I would like to save money and change the rears once the Geiser comes in. The rears "look" pretty straight forward not needing to remove any suspension arms/links, etc. Any insight? Thanks

I too would like to know how straight forward this is. Ordered the Geiser rears and would like to do the install myself if at all possible

 

[taquitos]

It’s infinitely easier with a lift. Like less than an hour. So I’d find a self service garage and book a couple of hours to be safe. With a lift, you pick it up just enough for the rear wheels to be off the ground and remove tires of course. Then put a jack under the rear differential to support it. After that, unbolt the bottom of the shocks. That will leave just the jack supporting the axle. Then slowly lower the axle while keeping an eye on the brake lines. The brake lines have enough slack for this to work, but you can obviously over do it. Lower the axle just enough to get the springs in and out by hand with no spring compressor. Bolt everything back up and you’re good to go.

 

[Raptor404]

It’s infinitely easier with a lift. Like less than an hour. So I’d find a self service garage and book a couple of hours to be safe. With a lift, you pick it up just enough for the rear wheels to be off the ground and remove tires of course. Then put a jack under the rear differential to support it. After that, unbolt the bottom of the shocks. That will leave just the jack supporting the axle. Then slowly lower the axle while keeping an eye on the brake lines. The brake lines have enough slack for this to work, but you can obviously over do it. Lower the axle just enough to get the springs in and out by hand with no spring compressor. Bolt everything back up and you’re good to go.

Thank you. I will report back. Springs should be here today or tomorrow.

 

[Spooder]

Per the recommendation above and a call to Eibach I put in the HD springs. Brought my rake right back up to 1.5 inches with my toppper and daily load. Now when I load up for x country or camping I should always be at or above level. Looking at the stock springs before the change and level all the progressive loops were compressed solid. Thanks for the advice Johnny Apollo

 

[Raptor404]

I just installed the Geiser rear springs. Left the front Eibachs in place. I lifted the rear using 2x4 (not recommended) some thick strong left over stone tiles, wheel chocks in the front and Amazon purchased heavy duty spring compressor. Eyeballing it (got dark) I can 100% notice the lift in the rear. It looks higher than when it was bone stock which I guess typically the rear is raked over the front a little. Drove it, jumped my local speed bump to let the rear spring to seat themselves. And it is still jacked in the rear. Probably squat a little as time passes. I am kicking myself as I forgot to measure prior to the swap. Obviously once I put camping gear and 2 passengers (est. 500/700+ lbs.) it will sag. Won't know until this weekend when I load her up for a trip.

Some comment/questions. The way it sits now, the Timbren SES still would not ride in contact with the axle. Possibly with the added weight it might come close. So maybe the Timbren's are only good if I plan on doing high speed runs in the dirt with all my camping gear. Any thoughts on this?
And second, I have the Airflift 1000 red kit. But looking at the springs as they sit compressed, the cavity inside the springs is almost 1.5 times the height of the bags. Unless the bags double in height with 30 psi, what is the point of the bags? I was under the impression that the bags were to come into contact with the upper red puck and the lower black base puck and gift it that lift under load. Am I missing something here? Are the bags supposed to press outward putting pressure on the springs preventing them from compressing more?