1991 Two Door, 5 Speed, 3 inch lift. All drive-line components, steering components, suspension, track bar, control arms, etc have less than 3,000 miles. Totally new/rebuilt front Dana 30 front, 44 rear.
SYE with new Tom Wood's double cardigan front and rear propeller shafts.
At 45 MPH plus, mean vibration. Constant and distinct.
Until last night.
This is round II.
First tried a 1" T-Case drop based upon recommendation from several people. Then did my own research. Learned that A) a t-case drop is more or less a potential solution that is just luck-of-the draw; B) t-case drop can result in accelerated motor-mount damage.
Called Tom Woods. A tech told me about the need for a double cardigan to be within 1 degree of pinion angle on the axle side.
Measured. Did a 7 degree shim install.
Now, with each imperfection in the road, the vibration "stops" for a brief moment. Each pot hole, rail road tracks, less than smooth road surfaces.
Upon research, axle assembly and/or propeller shaft angle will flex 1 or 2 degrees when a vehicle "encounters" uneven surfaces.
Could it be that I am within 1 or 2 degrees of being in-range?
Also, maybe I am measuring wrong? I measured on top of the "collar" on the Dana 44 and on top of the rear propeller shaft. Right now both angles match. Makes me think that I am placing the angle finder in the wrong place on the Dana 44.
Hope that a patron can provide more insight.
SYE with new Tom Wood's double cardigan front and rear propeller shafts.
At 45 MPH plus, mean vibration. Constant and distinct.
Until last night.
This is round II.
First tried a 1" T-Case drop based upon recommendation from several people. Then did my own research. Learned that A) a t-case drop is more or less a potential solution that is just luck-of-the draw; B) t-case drop can result in accelerated motor-mount damage.
Called Tom Woods. A tech told me about the need for a double cardigan to be within 1 degree of pinion angle on the axle side.
Measured. Did a 7 degree shim install.
Now, with each imperfection in the road, the vibration "stops" for a brief moment. Each pot hole, rail road tracks, less than smooth road surfaces.
Upon research, axle assembly and/or propeller shaft angle will flex 1 or 2 degrees when a vehicle "encounters" uneven surfaces.
Could it be that I am within 1 or 2 degrees of being in-range?
Also, maybe I am measuring wrong? I measured on top of the "collar" on the Dana 44 and on top of the rear propeller shaft. Right now both angles match. Makes me think that I am placing the angle finder in the wrong place on the Dana 44.
Hope that a patron can provide more insight.