Pinion angle... what's the secret?
 

I thought I had my pinion angle adjusted pretty well Sunday when I attached
the driveshaft, but I have a vibration that starts at about 40mph, dies off
at around 50 and picks up again at about 60.

My helper and I held a carpenters square (the big L shaped one) on the diff
and lined it up that way, pointing directly at the output of the
transfercase... Can anyone give tips that will get me dead on?
n.

Re: Pinion angle... what's the secret?
 

Is there plenty of room for the slip joint to travel, and you do
have the constant velocity joint, right?
http://www.4xshaft.com/driveline101.html And
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Nathan Otis wrote:
>
> I thought I had my pinion angle adjusted pretty well Sunday when I attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.

Re: Pinion angle... what's the secret?
 

Is there plenty of room for the slip joint to travel, and you do
have the constant velocity joint, right?
http://www.4xshaft.com/driveline101.html And
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Nathan Otis wrote:
>
> I thought I had my pinion angle adjusted pretty well Sunday when I attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.

Re: Pinion angle... what's the secret?
 

Is there plenty of room for the slip joint to travel, and you do
have the constant velocity joint, right?
http://www.4xshaft.com/driveline101.html And
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Nathan Otis wrote:
>
> I thought I had my pinion angle adjusted pretty well Sunday when I attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.

Re: Pinion angle... what's the secret?
 

bad!
the output shaft of the transfer case and the output from the rear
differential should be parallel within 5 degrees or you will get a
vibration.
this is not true if you have a double u joint(cv joint)
then what you have done applies.
old john


"Nathan Otis" <na@smeat.spam.net> wrote in message
news:394r5gF5liisbU1@individual.net...
> I thought I had my pinion angle adjusted pretty well Sunday when I
attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies
off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the
diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.
>
>

Re: Pinion angle... what's the secret?
 

bad!
the output shaft of the transfer case and the output from the rear
differential should be parallel within 5 degrees or you will get a
vibration.
this is not true if you have a double u joint(cv joint)
then what you have done applies.
old john


"Nathan Otis" <na@smeat.spam.net> wrote in message
news:394r5gF5liisbU1@individual.net...
> I thought I had my pinion angle adjusted pretty well Sunday when I
attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies
off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the
diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.
>
>

Re: Pinion angle... what's the secret?
 

bad!
the output shaft of the transfer case and the output from the rear
differential should be parallel within 5 degrees or you will get a
vibration.
this is not true if you have a double u joint(cv joint)
then what you have done applies.
old john


"Nathan Otis" <na@smeat.spam.net> wrote in message
news:394r5gF5liisbU1@individual.net...
> I thought I had my pinion angle adjusted pretty well Sunday when I
attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies
off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the
diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.
>
>

Re: Pinion angle... what's the secret?
 

IT depends on the kind of driveshaft you're running, a CV
(double-cardin) or a conventional driveshaft. The pinion should point
directly at the output of the t-case only if the driveshaft is a CV. If
it's a conventional driveshaft, the pinion angle must be parallel to the
output shaft.

Nathan Otis wrote:
> I thought I had my pinion angle adjusted pretty well Sunday when I attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.
>
>

--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/

Re: Pinion angle... what's the secret?
 

IT depends on the kind of driveshaft you're running, a CV
(double-cardin) or a conventional driveshaft. The pinion should point
directly at the output of the t-case only if the driveshaft is a CV. If
it's a conventional driveshaft, the pinion angle must be parallel to the
output shaft.

Nathan Otis wrote:
> I thought I had my pinion angle adjusted pretty well Sunday when I attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.
>
>

--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/

Re: Pinion angle... what's the secret?
 

IT depends on the kind of driveshaft you're running, a CV
(double-cardin) or a conventional driveshaft. The pinion should point
directly at the output of the t-case only if the driveshaft is a CV. If
it's a conventional driveshaft, the pinion angle must be parallel to the
output shaft.

Nathan Otis wrote:
> I thought I had my pinion angle adjusted pretty well Sunday when I attached
> the driveshaft, but I have a vibration that starts at about 40mph, dies off
> at around 50 and picks up again at about 60.
>
> My helper and I held a carpenters square (the big L shaped one) on the diff
> and lined it up that way, pointing directly at the output of the
> transfercase... Can anyone give tips that will get me dead on?
> n.
>
>

--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/