87xjco
NAXJA Forum User
- Location
- Denver, CO
O/K
I am installing a low pinion, waggy D44 in my 87 XJ (Xota). I could use some help checking my figures to make sure I am doing this right. I’m hoping some people who have done this will respond and answer questions.
From my measurements it appears that in order to get a good drive shaft angle, I am going to need a 20 degree pinion angle.
I basically made a jig that set the housing at the same height that it will be, with my 35” tires, and then a point on the jig, that is the same distance and height from the housing, at the transfer case yoke center, as it is on my vehicle. Then I rotated the housing until a straight line off of the pinion yoke, pointed about 2 degrees below the transfer case yoke center point.
But, looking at it, that angle seems kind of excessive.
Q; Does that angle seem excessive to you?
Q: Would there be pinion oiling problems with that angle?
Next I measured the angle at the lower ball joint surface and it was 6 degrees
Q: By looking at the chart above, am I correct, that is a 6 degree, negative caster angle?
Q; Am I correct that if I want a 5 degree, positive caster angle, I need to rotate the knuckle 11 degrees clockwise?
Your answers are appreciated!!!
Terry
I am installing a low pinion, waggy D44 in my 87 XJ (Xota). I could use some help checking my figures to make sure I am doing this right. I’m hoping some people who have done this will respond and answer questions.
From my measurements it appears that in order to get a good drive shaft angle, I am going to need a 20 degree pinion angle.
I basically made a jig that set the housing at the same height that it will be, with my 35” tires, and then a point on the jig, that is the same distance and height from the housing, at the transfer case yoke center, as it is on my vehicle. Then I rotated the housing until a straight line off of the pinion yoke, pointed about 2 degrees below the transfer case yoke center point.
But, looking at it, that angle seems kind of excessive.
Q; Does that angle seem excessive to you?
Q: Would there be pinion oiling problems with that angle?
Next I measured the angle at the lower ball joint surface and it was 6 degrees
Q: By looking at the chart above, am I correct, that is a 6 degree, negative caster angle?
Q; Am I correct that if I want a 5 degree, positive caster angle, I need to rotate the knuckle 11 degrees clockwise?
Your answers are appreciated!!!
Terry