pinion angel on a toy

[HvyRtFt69]

ok so i need to know just how far i need to rotate my front diff. i am wanting to cut my perchs off and reweld them back to the axle. iam running 4 inch t.g. springs with a 5 inch shackel. this is on a 91 standard cab with a stock tranny and transfer case. so if u could let me know just how far to rotate or just where to weld the new perchs on that would be great.

 

[Fordzuki]

Single u-joint or double cardan?

 

[notstock]

Single u-joint or double cardan?

Should be double cardan stock for the front

 

[crash2]

ok so i need to know just how far i need to rotate my front diff. i am wanting to cut my perchs off and reweld them back to the axle. iam running 4 inch t.g. springs with a 5 inch shackel. this is on a 91 standard cab with a stock tranny and transfer case. so if u could let me know just how far to rotate or just where to weld the new perchs on that would be great.

I would be more concerned with your caster than the pinion angle unless you cut and rotated the knuckles..

Also a toy housing is a bit of a PITA when you rotate the housing due to the long flat area on the passenger side

 

[Fordzuki]

Should be double cardan stock for the front

I just assumed since it's a 91 and sas, it wasn't "stock"


And I just can't resist, so, these pinion angels, do they really help? Or do you still break pinions? :redneck:

 

[HvyRtFt69]

its a single u joint, square tubing home made drivrline. so what do u recomend in place of rotating the axel? and i should tell u that i am running hysteer.

 

[Fordzuki]

single ujoint should be as near the same angle as the output on the transfercase for less vibs, but that's probably the least of your worries with a homemade square driveline.

 

[crash2]

its a single u joint, square tubing home made drivrline. so what do u recomend in place of rotating the axel? and i should tell u that i am running hysteer.

My suggestion---keep it where it is

unless #1 you are willing to cut and rotate the knucles or #2 get a high pinion third...

 

[notstock]

I just assumed since it's a 91 and sas, it wasn't "stock"


And I just can't resist, so, these pinion angels, do they really help? Or do you still break pinions? :redneck:

and you were correct:haha:

 

[skrause]

My suggestion---keep it where it is and get a high pinion third...

Fixed. :awesomework:

 

[HvyRtFt69]

well the reason im asking this is because the ujoint ears on the actual drivline are rubbing on the driveline bolt flange and binding up the front drive line. and yes vibs are of no concern at this point with a square drive line lol

 

[crash2]

well the reason im asking this is because the ujoint ears on the actual drivline are rubbing on the driveline bolt flange and binding up the front drive line. and yes vibs are of no concern at this point with a square drive line lol

What springs are you running? And what is the caster?

 

[HvyRtFt69]

the springs im running are 4 inch trail gears. i dont know my caster, all i know is that it drives staright down the road lol. and i was trying to stay away from a high pinon because money is kinda tight

 

[crash2]

First thing you need to do--is figure out your caster and go from there...

Perfection is 7 degrees negative caster but on a toy you can typicly get away with about 4.

 

[HvyRtFt69]

i feel like a complete idiot but what is caster i can remeber camber and toe? and how can i find my caster angel?

 

[skrause]

i feel like a complete idiot but what is caster i can remeber camber and toe? and how can i find my caster angel?

Caster is the forward/rearward lean of the steering axis, think of it as an imaginary line through the trunion bearings. You want it leaning back from vertical as Crash said, around 7 degrees "negative" is best.

*cough* angle */cough* :awesomework:

 

[crash2]

Hopefully the Pm helps :awesomework:

 

[HvyRtFt69]

the pm helped out a lot and u are helping a lot too thanks a million. so i dont want anything less than 4 degrees negitive caster but 7 would be the best? and if i cant adjust my caster it sounds like a high pinion is in my near future cause i want to get this finished by fathers day weekend

 

[skrause]

the pm helped out a lot and u are helping a lot too thanks a million. so i dont want anything less than 4 degrees negitive caster but 7 would be the best? and if i cant adjust my caster it sounds like a high pinion is in my near future cause i want to get this finished by fathers day weekend

Is it binding at rest or while flexing?

 

[crash2]

Is it binding at rest or while flexing?

I forgot about that--- Possable axle wrap....