Page 1 of 1
Rear Diff Coil Supports
Posted: Wed Jul 20, 2005 10:03 am
by blkmav
Something I was thinking about the other day, it may be a stupid question...
The coil supports are welded to the rear diff and in theory should be parallel to the road for the coils to sit flat. When you fit a lift, the diff rotates slightly and the coil supports are therefore no longer parallel.
Would this cause uneven stress on the coil, resulting in it possibly bending? Particularly on the driver's side rear.
Re: Rear Diff Coil Supports
Posted: Wed Jul 20, 2005 10:09 am
by bogged
blkmav wrote:Would this cause uneven stress on the coil, resulting in it possibly bending? Particularly on the driver's side rear.
I would think it would put more stress on the plate not the spring - plate is only thin crap, spring is a fairly solid item.
.. Also have see photos where the plate that the spring sits on shits itself BADERER...
Posted: Wed Jul 20, 2005 11:00 am
by GQ TROL
Yes, that can sometimes result in springs which have a distinct bow to them. We shagged a set of 5" rear coils on a SWB because we were too lazy at the time to lengthen the lower arms to compensate for the diff rotation.
Posted: Wed Jul 20, 2005 5:39 pm
by toughnut
Thats why most people opt for either longer lower trailing arms or adjustable uppers or both. It also effects the way the torque is transfered to the rear wheels as castor plays a part in the rear axle geometry as well. By rotating your diff you can make the vehicle sit up or squat when the power is applied to a certain extent.
Posted: Thu Jul 21, 2005 7:07 am
by Wendle
toughnut wrote:By rotating your diff you can make the vehicle sit up or squat when the power is applied to a certain extent.
no, not really. it might effect it an infinitesimal ammount, as when you rotate the housing you are changing the height and seperation of the mounts by a few millimetres, but it isn't going to be enough to create a change in behavior. height and seperation of the mounts at the chassis end is the biggest player in the effects you are talking about.
Posted: Thu Jul 21, 2005 9:35 pm
by ludacris
I have adjustable uppers and lengthened lowers but have left my diff with the lifted tilt as there has not been any problems what so ever and it also keeps the tailshaft higher and out of the way from rocks. If I did not race the truck I would adjust the diff back to level.
LudaCris