Re: Differential gear change question
 

Man, I am comfortable tearing an engine down, but I sure leave the gear
setup to the pro's. I watched one do mine and well.... He needed shim
sets and special gauges to get it proper after just changing the
bearings in my rear end. This is using my old carrier even.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

billy ray wrote:
>
> Richard,
>
> All the information you need to set up a differential is in the factory
> service manual.
>
> As an experienced Engineer you have the knowledge to complete the labor and
> list of specialty required tools is in the back of each manual section and
> drawing showing the tools in use..
>
> Examples below:
> http://i112.photobucket.com/albums/n...ance/tools.jpg
>
> http://i112.photobucket.com/albums/n...ce/tooluse.jpg
>
> Just get yourself a manual, order the parts, assemble the tools, and get to
> work...
>
> "Richard J Kinch" <kinch@truetex.com> wrote in message
> news:Xns9899A6A71C86someconundrum@216.196.97.131.. .
> > JimG writes:
> >
> >> One with that ability would not be asking some of
> >> these questions (difference between carriers, housings, and bearings).
> >
> > You must have misunderstood my questions if you think they suggest a
> > lack of ability.
> >
> > Usenet is such a wonderful place to ask questions. Not only do you get
> > technical advice, you also get the very core of your being picked apart
> > and analyzed.
> >
> > There are various cases for various ranges of gear ratios. I was simply
> > asking if the bearing seats and other features in the axle housings are
> > likewise varied and incompatible across gear ratios or ranges of gear
> > ratios, since I have a swap in mind and don't want to tear into the
> > differential to install a gear set that could turn out to be
> > incompatible. This is just an arbitrary fact of the designs that can't
> > be known except by revelation or a costly trial and error.
> >
> > In short, "Does a case with a 3.07 ring gear directly drop into an axle
> > housing presently holding a case with 3.73 ring gear". Because I am
> > told that these two cases won't accept the other's ring gear.
> >
> > One has to be wary about advice using various terms for parts, words
> > that differ from the manufacturer's, which are themselves confusing. My
> > questioning of non-standard terminology doesn't mean I don't understand
> > what's going on or what's involved, it just means I want to make sure
> > the advice is correct.

Re: Differential gear change question
 

Man, I am comfortable tearing an engine down, but I sure leave the gear
setup to the pro's. I watched one do mine and well.... He needed shim
sets and special gauges to get it proper after just changing the
bearings in my rear end. This is using my old carrier even.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

billy ray wrote:
>
> Richard,
>
> All the information you need to set up a differential is in the factory
> service manual.
>
> As an experienced Engineer you have the knowledge to complete the labor and
> list of specialty required tools is in the back of each manual section and
> drawing showing the tools in use..
>
> Examples below:
> http://i112.photobucket.com/albums/n...ance/tools.jpg
>
> http://i112.photobucket.com/albums/n...ce/tooluse.jpg
>
> Just get yourself a manual, order the parts, assemble the tools, and get to
> work...
>
> "Richard J Kinch" <kinch@truetex.com> wrote in message
> news:Xns9899A6A71C86someconundrum@216.196.97.131.. .
> > JimG writes:
> >
> >> One with that ability would not be asking some of
> >> these questions (difference between carriers, housings, and bearings).
> >
> > You must have misunderstood my questions if you think they suggest a
> > lack of ability.
> >
> > Usenet is such a wonderful place to ask questions. Not only do you get
> > technical advice, you also get the very core of your being picked apart
> > and analyzed.
> >
> > There are various cases for various ranges of gear ratios. I was simply
> > asking if the bearing seats and other features in the axle housings are
> > likewise varied and incompatible across gear ratios or ranges of gear
> > ratios, since I have a swap in mind and don't want to tear into the
> > differential to install a gear set that could turn out to be
> > incompatible. This is just an arbitrary fact of the designs that can't
> > be known except by revelation or a costly trial and error.
> >
> > In short, "Does a case with a 3.07 ring gear directly drop into an axle
> > housing presently holding a case with 3.73 ring gear". Because I am
> > told that these two cases won't accept the other's ring gear.
> >
> > One has to be wary about advice using various terms for parts, words
> > that differ from the manufacturer's, which are themselves confusing. My
> > questioning of non-standard terminology doesn't mean I don't understand
> > what's going on or what's involved, it just means I want to make sure
> > the advice is correct.

Re: Differential gear change question
 

Man, I am comfortable tearing an engine down, but I sure leave the gear
setup to the pro's. I watched one do mine and well.... He needed shim
sets and special gauges to get it proper after just changing the
bearings in my rear end. This is using my old carrier even.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

billy ray wrote:
>
> Richard,
>
> All the information you need to set up a differential is in the factory
> service manual.
>
> As an experienced Engineer you have the knowledge to complete the labor and
> list of specialty required tools is in the back of each manual section and
> drawing showing the tools in use..
>
> Examples below:
> http://i112.photobucket.com/albums/n...ance/tools.jpg
>
> http://i112.photobucket.com/albums/n...ce/tooluse.jpg
>
> Just get yourself a manual, order the parts, assemble the tools, and get to
> work...
>
> "Richard J Kinch" <kinch@truetex.com> wrote in message
> news:Xns9899A6A71C86someconundrum@216.196.97.131.. .
> > JimG writes:
> >
> >> One with that ability would not be asking some of
> >> these questions (difference between carriers, housings, and bearings).
> >
> > You must have misunderstood my questions if you think they suggest a
> > lack of ability.
> >
> > Usenet is such a wonderful place to ask questions. Not only do you get
> > technical advice, you also get the very core of your being picked apart
> > and analyzed.
> >
> > There are various cases for various ranges of gear ratios. I was simply
> > asking if the bearing seats and other features in the axle housings are
> > likewise varied and incompatible across gear ratios or ranges of gear
> > ratios, since I have a swap in mind and don't want to tear into the
> > differential to install a gear set that could turn out to be
> > incompatible. This is just an arbitrary fact of the designs that can't
> > be known except by revelation or a costly trial and error.
> >
> > In short, "Does a case with a 3.07 ring gear directly drop into an axle
> > housing presently holding a case with 3.73 ring gear". Because I am
> > told that these two cases won't accept the other's ring gear.
> >
> > One has to be wary about advice using various terms for parts, words
> > that differ from the manufacturer's, which are themselves confusing. My
> > questioning of non-standard terminology doesn't mean I don't understand
> > what's going on or what's involved, it just means I want to make sure
> > the advice is correct.

Re: Differential gear change question
 

I'll also mention a bearing press and that all valuable tool - experience!

"Mike Romain" wrote in message...
> Man, I am comfortable tearing an engine down, but I sure leave the gear
> setup to the pro's. I watched one do mine and well.... He needed shim
> sets and special gauges to get it proper after just changing the
> bearings in my rear end. This is using my old carrier even.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> billy ray wrote:
>>
>> Richard,
>>
>> All the information you need to set up a differential is in the factory
>> service manual.
>>
>> As an experienced Engineer you have the knowledge to complete the labor
>> and
>> list of specialty required tools is in the back of each manual section
>> and
>> drawing showing the tools in use..
>>
>> Examples below:
>> http://i112.photobucket.com/albums/n...ance/tools.jpg
>>
>> http://i112.photobucket.com/albums/n...ce/tooluse.jpg
>>
>> Just get yourself a manual, order the parts, assemble the tools, and get
>> to
>> work...
>>
>> "Richard J Kinch" <kinch@truetex.com> wrote in message
>> news:Xns9899A6A71C86someconundrum@216.196.97.131.. .
>> > JimG writes:
>> >
>> >> One with that ability would not be asking some of
>> >> these questions (difference between carriers, housings, and bearings).
>> >
>> > You must have misunderstood my questions if you think they suggest a
>> > lack of ability.
>> >
>> > Usenet is such a wonderful place to ask questions. Not only do you get
>> > technical advice, you also get the very core of your being picked apart
>> > and analyzed.
>> >
>> > There are various cases for various ranges of gear ratios. I was
>> > simply
>> > asking if the bearing seats and other features in the axle housings are
>> > likewise varied and incompatible across gear ratios or ranges of gear
>> > ratios, since I have a swap in mind and don't want to tear into the
>> > differential to install a gear set that could turn out to be
>> > incompatible. This is just an arbitrary fact of the designs that can't
>> > be known except by revelation or a costly trial and error.
>> >
>> > In short, "Does a case with a 3.07 ring gear directly drop into an axle
>> > housing presently holding a case with 3.73 ring gear". Because I am
>> > told that these two cases won't accept the other's ring gear.
>> >
>> > One has to be wary about advice using various terms for parts, words
>> > that differ from the manufacturer's, which are themselves confusing.
>> > My
>> > questioning of non-standard terminology doesn't mean I don't understand
>> > what's going on or what's involved, it just means I want to make sure
>> > the advice is correct.

Re: Differential gear change question
 

I'll also mention a bearing press and that all valuable tool - experience!

"Mike Romain" wrote in message...
> Man, I am comfortable tearing an engine down, but I sure leave the gear
> setup to the pro's. I watched one do mine and well.... He needed shim
> sets and special gauges to get it proper after just changing the
> bearings in my rear end. This is using my old carrier even.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> billy ray wrote:
>>
>> Richard,
>>
>> All the information you need to set up a differential is in the factory
>> service manual.
>>
>> As an experienced Engineer you have the knowledge to complete the labor
>> and
>> list of specialty required tools is in the back of each manual section
>> and
>> drawing showing the tools in use..
>>
>> Examples below:
>> http://i112.photobucket.com/albums/n...ance/tools.jpg
>>
>> http://i112.photobucket.com/albums/n...ce/tooluse.jpg
>>
>> Just get yourself a manual, order the parts, assemble the tools, and get
>> to
>> work...
>>
>> "Richard J Kinch" <kinch@truetex.com> wrote in message
>> news:Xns9899A6A71C86someconundrum@216.196.97.131.. .
>> > JimG writes:
>> >
>> >> One with that ability would not be asking some of
>> >> these questions (difference between carriers, housings, and bearings).
>> >
>> > You must have misunderstood my questions if you think they suggest a
>> > lack of ability.
>> >
>> > Usenet is such a wonderful place to ask questions. Not only do you get
>> > technical advice, you also get the very core of your being picked apart
>> > and analyzed.
>> >
>> > There are various cases for various ranges of gear ratios. I was
>> > simply
>> > asking if the bearing seats and other features in the axle housings are
>> > likewise varied and incompatible across gear ratios or ranges of gear
>> > ratios, since I have a swap in mind and don't want to tear into the
>> > differential to install a gear set that could turn out to be
>> > incompatible. This is just an arbitrary fact of the designs that can't
>> > be known except by revelation or a costly trial and error.
>> >
>> > In short, "Does a case with a 3.07 ring gear directly drop into an axle
>> > housing presently holding a case with 3.73 ring gear". Because I am
>> > told that these two cases won't accept the other's ring gear.
>> >
>> > One has to be wary about advice using various terms for parts, words
>> > that differ from the manufacturer's, which are themselves confusing.
>> > My
>> > questioning of non-standard terminology doesn't mean I don't understand
>> > what's going on or what's involved, it just means I want to make sure
>> > the advice is correct.

Re: Differential gear change question
 

I'll also mention a bearing press and that all valuable tool - experience!

"Mike Romain" wrote in message...
> Man, I am comfortable tearing an engine down, but I sure leave the gear
> setup to the pro's. I watched one do mine and well.... He needed shim
> sets and special gauges to get it proper after just changing the
> bearings in my rear end. This is using my old carrier even.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> billy ray wrote:
>>
>> Richard,
>>
>> All the information you need to set up a differential is in the factory
>> service manual.
>>
>> As an experienced Engineer you have the knowledge to complete the labor
>> and
>> list of specialty required tools is in the back of each manual section
>> and
>> drawing showing the tools in use..
>>
>> Examples below:
>> http://i112.photobucket.com/albums/n...ance/tools.jpg
>>
>> http://i112.photobucket.com/albums/n...ce/tooluse.jpg
>>
>> Just get yourself a manual, order the parts, assemble the tools, and get
>> to
>> work...
>>
>> "Richard J Kinch" <kinch@truetex.com> wrote in message
>> news:Xns9899A6A71C86someconundrum@216.196.97.131.. .
>> > JimG writes:
>> >
>> >> One with that ability would not be asking some of
>> >> these questions (difference between carriers, housings, and bearings).
>> >
>> > You must have misunderstood my questions if you think they suggest a
>> > lack of ability.
>> >
>> > Usenet is such a wonderful place to ask questions. Not only do you get
>> > technical advice, you also get the very core of your being picked apart
>> > and analyzed.
>> >
>> > There are various cases for various ranges of gear ratios. I was
>> > simply
>> > asking if the bearing seats and other features in the axle housings are
>> > likewise varied and incompatible across gear ratios or ranges of gear
>> > ratios, since I have a swap in mind and don't want to tear into the
>> > differential to install a gear set that could turn out to be
>> > incompatible. This is just an arbitrary fact of the designs that can't
>> > be known except by revelation or a costly trial and error.
>> >
>> > In short, "Does a case with a 3.07 ring gear directly drop into an axle
>> > housing presently holding a case with 3.73 ring gear". Because I am
>> > told that these two cases won't accept the other's ring gear.
>> >
>> > One has to be wary about advice using various terms for parts, words
>> > that differ from the manufacturer's, which are themselves confusing.
>> > My
>> > questioning of non-standard terminology doesn't mean I don't understand
>> > what's going on or what's involved, it just means I want to make sure
>> > the advice is correct.

Re: Differential gear change question
 

JimG writes:

> IMHO, a mechanic capable of gear setup would know that the bearing
> sets and housings are the same regardless of gear ratio.

Like me, he wasn't born knowing that. And they are not the same in all
respects.

Re: Differential gear change question
 

JimG writes:

> IMHO, a mechanic capable of gear setup would know that the bearing
> sets and housings are the same regardless of gear ratio.

Like me, he wasn't born knowing that. And they are not the same in all
respects.

Re: Differential gear change question
 

JimG writes:

> IMHO, a mechanic capable of gear setup would know that the bearing
> sets and housings are the same regardless of gear ratio.

Like me, he wasn't born knowing that. And they are not the same in all
respects.

Re: Differential gear change question
 

On Thu, 14 Dec 2006 17:53:00 UTC Mike Romain <romainm@sympatico.ca>
wrote:

> Man, I am comfortable tearing an engine down, but I sure leave the gear
> setup to the pro's. I watched one do mine and well.... He needed shim
> sets and special gauges to get it proper after just changing the
> bearings in my rear end. This is using my old carrier even.

I've done several differentials with good success. The first one I
did was a straight replacement when I chipped a tooth and that really
suckered me in for the later ones - pinion depth was dead on first
try, backlash was right in the center of the range, wear pattern took
one shim change to get dead on - man, this is easy! The other times
were a mix, but after taking nearly two days to set up the last one I
did, I came to the same conclusion you did: pay a pro! I like to
never got the pattern right on that one when I was going to a
different ratio.

--
Will Honea