a whole slew of projects for updating:
1. front sway bar reinstall +
upgraded end links. the smb end links are decent if you never plan on modifying the suspension. to make these end links work on the 1/2-inch studs, we bought some
3/4-inch OD tubing from mcmaster ... the inner diameter of the bushings is 3/4-inch.
2. new deaver leaf springs from
Oly11 +
spring plate &u-bolts from wfoconcepts
3. new rear brake lines from
absolute hose &fittings
while removing the old man emu springs and installing the deaver springs, we found some serious issues with the rear suspension configuration:
a. how the sway bar was installed created major binding in the suspension travel...the bar should be close to parallel with the ground. during the spring install, when the axle was allowed to droop, the sway bar prevented it, only allowing about 2 to 3-inches of axle droop. 😒
b. the axle bracket for the shock is installed too high, which requires a smaller shock, which limits the total travel...and in this case, the shock would limit the axle droop, not the suspension. ☹ the axle bracket is in the wrong spot. if the axle bracket was installed from the lower half of the axle (like OEM), a 4-inch longer shock could be used. 4 more inches for a
shock with 9-inches of travel is...a lot.
c. the stock brake hoses were used for a lifted van, which is an issue.
when the sway bar was disconnected, the next link in the chain to prevent axle droop are the fox shocks. if the the shocks were to break offroad, then the brake line would be the last item limiting axle droop. 😶 to install the deaver springs required removing the t-block hold down bolt and letting the hose dangle. had a local shop fab all new flexible hoses -
absolute hose &fitting
. not to mention that somewhere along the way, someone fubar'd the rear axle hard line threads...so i had to create a new one.
4. new sway bar end links for the rear axle.
the same end links as the front to make it easy to purchase and swap if necessary. the adapter for the frame is a
Pro Comp 690002 with 5/8-inch stud.
the adapter for the bar is a
Teraflex 1203800 with 3/4-inch stud and redrilled a
hitch pin for a quick disconnect.
and lastly, anyone who wants a much smoother ride from their 5-6 ton van needs to consider one of the reputable aftermarket springs manufacturers. i've purchased deaver's for 4x4's before, but the difference between the SMB old man emu springs (crap) and the deaver springs is night and day...and is well worth the upgrade. 🤯
the next step is to replace the front brake hoses +the front leaf springs + the track bar +new remote reservoir shocks all around with better mounts.