Limited Slip Transaxle

skip hartline

Member
Sep 9, 2011
518
5
18
I have no ideal why I'm thinking about going to a LSD setup, just want to hear all the goods and bads related to the use of LSD on a GMC. I currently
have a 3.7 ratio. Is it a matter of bolting in the differential set up to existing gears or is it shimming set up required. just kicking it around,
and like to hear from experience. Thanks,
Skip Hartline
--
74 Canyon Lands, FiTech,
3.7 FD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
 
Skip,
We have a program where we send you a new unit with the LSD and trade your
old 3.70.
Only issue we warn people is, on slippery snow or ice, be carefu not to
spin the wheels as there will be a tendency to slide to the side.
We have sold over 100 LSD units with or gear sets.

On Thu, Aug 12, 2021 at 8:59 AM Skip Hartline
wrote:

> I have no ideal why I'm thinking about going to a LSD setup, just want to
> hear all the goods and bads related to the use of LSD on a GMC. I currently
> have a 3.7 ratio. Is it a matter of bolting in the differential set up to
> existing gears or is it shimming set up required. just kicking it around,
> and like to hear from experience. Thanks,
> Skip Hartline
> --
> 74 Canyon Lands, FiTech,
> 3.7 FD, Manny Tranny,
> Springfield Distributor,
> 2001 Chevy Tracker Ragtop Towd
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
LSD is great and def worth it is upgrading from 3.07. Not sure the upgrade is worth it if you already have 3.70's
I do know I often spin both wheel in campgrounds so I'm glad I did it

Keith Vasilakes
Mounds View MN
76 exRoyale
MicroLevelhttp://www.gmcmotorhomemarketplace.com/vasilakes/microlevel_intro.pdf

________________________________
From: Jim Kanomata
Sent: Thursday, August 12, 2021 11:32 AM
To: gmclist
Subject: [GMCnet] Re: Limited Slip Transaxle

Skip,
We have a program where we send you a new unit with the LSD and trade your
old 3.70.
Only issue we warn people is, on slippery snow or ice, be carefu not to
spin the wheels as there will be a tendency to slide to the side.
We have sold over 100 LSD units with or gear sets.

On Thu, Aug 12, 2021 at 8:59 AM Skip Hartline
wrote:

> I have no ideal why I'm thinking about going to a LSD setup, just want to
> hear all the goods and bads related to the use of LSD on a GMC. I currently
> have a 3.7 ratio. Is it a matter of bolting in the differential set up to
> existing gears or is it shimming set up required. just kicking it around,
> and like to hear from experience. Thanks,
> Skip Hartline
> --
> 74 Canyon Lands, FiTech,
> 3.7 FD, Manny Tranny,
> Springfield Distributor,
> 2001 Chevy Tracker Ragtop Towd
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
 
On the other hand, since 2000, my GMC has been from Key West, FL to
Fairbanks, AK and LOTS of places in between (including up Manny's STEEP
hill) without ever having a moment's trouble. No, Wait!, one time I got on
a dead end road and tried to make a circle in an unkempt grass field -- SHE
wound up in the CRV toad helping push me back onto the pavement. Sorry for
the bad information! :-)

Ken H.

> LSD is great and def worth it is upgrading from 3.07. Not sure the upgrade
> is worth it if you already have 3.70's
> I do know I often spin both wheel in campgrounds so I'm glad I did it
>
> Keith Vasilakes
> Mounds View MN
> 76 exRoyale
> MicroLevel<
> http://www.gmcmotorhomemarketplace.com/vasilakes/microlevel_intro.pdf>
>
>
> ________________________________
> From: Jim Kanomata
> Sent: Thursday, August 12, 2021 11:32 AM
> To: gmclist
> Subject: [GMCnet] Re: Limited Slip Transaxle
>
> Skip,
> We have a program where we send you a new unit with the LSD and trade your
> old 3.70.
> Only issue we warn people is, on slippery snow or ice, be carefu not to
> spin the wheels as there will be a tendency to slide to the side.
> We have sold over 100 LSD units with or gear sets.
>
> On Thu, Aug 12, 2021 at 8:59 AM Skip Hartline

>
> > I have no ideal why I'm thinking about going to a LSD setup, just want to
> > hear all the goods and bads related to the use of LSD on a GMC. I
> currently
> > have a 3.7 ratio. Is it a matter of bolting in the differential set up to
> > existing gears or is it shimming set up required. just kicking it around,
> > and like to hear from experience. Thanks,
> > Skip Hartline
> > --
> > 74 Canyon Lands, FiTech,
> > 3.7 FD, Manny Tranny,
> > Springfield Distributor,
> > 2001 Chevy Tracker Ragtop Towd
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> >
>
>
> --
> Jim Kanomata ASE
> Applied/GMC, Newark,CA
> jimk
> http://www.gmcrvparts.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
I too have driven that gravel strewn on asphalt hill going to Manny's
place. That last pitch up to his driveway is a real challenge for a GMC.
But, I have driven it several times with no problems in my 78 Royale with
3:70 final drive and a 403 engine.
Jim Hupy
Salem, Oregon

> On the other hand, since 2000, my GMC has been from Key West, FL to
> Fairbanks, AK and LOTS of places in between (including up Manny's STEEP
> hill) without ever having a moment's trouble. No, Wait!, one time I got on
> a dead end road and tried to make a circle in an unkempt grass field -- SHE
> wound up in the CRV toad helping push me back onto the pavement. Sorry for
> the bad information! :-)
>
> Ken H.
>
>

>
> > LSD is great and def worth it is upgrading from 3.07. Not sure the
> upgrade
> > is worth it if you already have 3.70's
> > I do know I often spin both wheel in campgrounds so I'm glad I did it
> >
> > Keith Vasilakes
> > Mounds View MN
> > 76 exRoyale
> > MicroLevel<
> > http://www.gmcmotorhomemarketplace.com/vasilakes/microlevel_intro.pdf>
> >
> >
> > ________________________________
> > From: Jim Kanomata
> > Sent: Thursday, August 12, 2021 11:32 AM
> > To: gmclist
> > Subject: [GMCnet] Re: Limited Slip Transaxle
> >
> > Skip,
> > We have a program where we send you a new unit with the LSD and trade
> your
> > old 3.70.
> > Only issue we warn people is, on slippery snow or ice, be carefu not to
> > spin the wheels as there will be a tendency to slide to the side.
> > We have sold over 100 LSD units with or gear sets.
> >
> > On Thu, Aug 12, 2021 at 8:59 AM Skip Hartline

> >
> > > I have no ideal why I'm thinking about going to a LSD setup, just want
> to
> > > hear all the goods and bads related to the use of LSD on a GMC. I
> > currently
> > > have a 3.7 ratio. Is it a matter of bolting in the differential set up
> to
> > > existing gears or is it shimming set up required. just kicking it
> around,
> > > and like to hear from experience. Thanks,
> > > Skip Hartline
> > > --
> > > 74 Canyon Lands, FiTech,
> > > 3.7 FD, Manny Tranny,
> > > Springfield Distributor,
> > > 2001 Chevy Tracker Ragtop Towd
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > >
> >
> >
> > --
> > Jim Kanomata ASE
> > Applied/GMC, Newark,CA
> > jimk
> > http://www.gmcrvparts.com
> > 1-800-752-7502
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
I think Manny was surprised the first time I made it with my
23'/455ci/3.50:1! :-)

Did he have the service rack (which he copied from mine) finished when you
were there? I haven't seen it -- even the promised pictures; sure would
like to, but at 84 yo, 'tain't likely no more. :-(

Ken H.

> I too have driven that gravel strewn on asphalt hill going to Manny's
> place. That last pitch up to his driveway is a real challenge for a GMC.
> But, I have driven it several times with no problems in my 78 Royale with
> 3:70 final drive and a 403 engine.
> Jim Hupy
> Salem, Oregon
>
> On Thu, Aug 12, 2021, 10:18 AM Ken Henderson

>
> > On the other hand, since 2000, my GMC has been from Key West, FL to
> > Fairbanks, AK and LOTS of places in between (including up Manny's STEEP
> > hill) without ever having a moment's trouble. No, Wait!, one time I got
> on
> > a dead end road and tried to make a circle in an unkempt grass field --
> SHE
> > wound up in the CRV toad helping push me back onto the pavement. Sorry
> for
> > the bad information! :-)
> >
> > Ken H.
> >
> >

> >
> > > LSD is great and def worth it is upgrading from 3.07. Not sure the
> > upgrade
> > > is worth it if you already have 3.70's
> > > I do know I often spin both wheel in campgrounds so I'm glad I did it
> > >
> > > Keith Vasilakes
> > > Mounds View MN
> > > 76 exRoyale
> > > MicroLevel<
> > > http://www.gmcmotorhomemarketplace.com/vasilakes/microlevel_intro.pdf>
> > >
> > >
> > > ________________________________
> > > From: Jim Kanomata
> > > Sent: Thursday, August 12, 2021 11:32 AM
> > > To: gmclist
> > > Subject: [GMCnet] Re: Limited Slip Transaxle
> > >
> > > Skip,
> > > We have a program where we send you a new unit with the LSD and trade
> > your
> > > old 3.70.
> > > Only issue we warn people is, on slippery snow or ice, be carefu not to
> > > spin the wheels as there will be a tendency to slide to the side.
> > > We have sold over 100 LSD units with or gear sets.
> > >
> > > On Thu, Aug 12, 2021 at 8:59 AM Skip Hartline

> > >
> > > > I have no ideal why I'm thinking about going to a LSD setup, just
> want
> > to
> > > > hear all the goods and bads related to the use of LSD on a GMC. I
> > > currently
> > > > have a 3.7 ratio. Is it a matter of bolting in the differential set
> up
> > to
> > > > existing gears or is it shimming set up required. just kicking it
> > around,
> > > > and like to hear from experience. Thanks,
> > > > Skip Hartline
> > > > --
> > > > 74 Canyon Lands, FiTech,
> > > > 3.7 FD, Manny Tranny,
> > > > Springfield Distributor,
> > > > 2001 Chevy Tracker Ragtop Towd
> > > > _______________________________________________
> > > > GMCnet mailing list
> > > > Unsubscribe or Change List Options:
> > > >
> > >
> > >
> > > --
> > > Jim Kanomata ASE
> > > Applied/GMC, Newark,CA
> > > jimk
> > > http://www.gmcrvparts.com
> > > 1-800-752-7502
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
Hey, I guess that apology wasn't really complete: By "...without ever
having a moment's trouble" I was referring only to wheel slippage. Didn't
mean to imply that I've had no "adventures"! I've certainly had at least
my share of those! Totaled engine @ 50,049 miles, blown transmission seal,
blown transmission, "exploded" final drive, vapor locks, fuel pump
failures, etc., etc.. But only that one wheel spinner! :---)
(Pinnochio nose H.)

Ken H.

On Thu, Aug 12, 2021 at 1:31 PM Ken Henderson
wrote:

> I think Manny was surprised the first time I made it with my
> 23'/455ci/3.50:1! :-)
>
> Did he have the service rack (which he copied from mine) finished when you
> were there? I haven't seen it -- even the promised pictures; sure would
> like to, but at 84 yo, 'tain't likely no more. :-(
>
> Ken H.
>

>
>> I too have driven that gravel strewn on asphalt hill going to Manny's
>> place. That last pitch up to his driveway is a real challenge for a GMC.
>> But, I have driven it several times with no problems in my 78 Royale with
>> 3:70 final drive and a 403 engine.
>> Jim Hupy
>> Salem, Oregon
>>
>> On Thu, Aug 12, 2021, 10:18 AM Ken Henderson

>>
>> > On the other hand, since 2000, my GMC has been from Key West, FL to
>> > Fairbanks, AK and LOTS of places in between (including up Manny's STEEP
>> > hill) without ever having a moment's trouble. No, Wait!, one time I
>> got on
>> > a dead end road and tried to make a circle in an unkempt grass field --
>> SHE
>> > wound up in the CRV toad helping push me back onto the pavement. Sorry
>> for
>> > the bad information! :-)
>> >
>> > Ken H.
>> >
>> >

>> >
>> > > LSD is great and def worth it is upgrading from 3.07. Not sure the
>> > upgrade
>> > > is worth it if you already have 3.70's
>> > > I do know I often spin both wheel in campgrounds so I'm glad I did it
>> > >
>> > > Keith Vasilakes
>> > > Mounds View MN
>> > > 76 exRoyale
>> > > MicroLevel<
>> > > http://www.gmcmotorhomemarketplace.com/vasilakes/microlevel_intro.pdf
>> >
>> > >
>> > >
>> > > ________________________________
>> > > From: Jim Kanomata
>> > > Sent: Thursday, August 12, 2021 11:32 AM
>> > > To: gmclist
>> > > Subject: [GMCnet] Re: Limited Slip Transaxle
>> > >
>> > > Skip,
>> > > We have a program where we send you a new unit with the LSD and trade
>> > your
>> > > old 3.70.
>> > > Only issue we warn people is, on slippery snow or ice, be carefu not
>> to
>> > > spin the wheels as there will be a tendency to slide to the side.
>> > > We have sold over 100 LSD units with or gear sets.
>> > >
>> > > On Thu, Aug 12, 2021 at 8:59 AM Skip Hartline > >

>> > >
>> > > > I have no ideal why I'm thinking about going to a LSD setup, just
>> want
>> > to
>> > > > hear all the goods and bads related to the use of LSD on a GMC. I
>> > > currently
>> > > > have a 3.7 ratio. Is it a matter of bolting in the differential set
>> up
>> > to
>> > > > existing gears or is it shimming set up required. just kicking it
>> > around,
>> > > > and like to hear from experience. Thanks,
>> > > > Skip Hartline
>> > > > --
>> > > > 74 Canyon Lands, FiTech,
>> > > > 3.7 FD, Manny Tranny,
>> > > > Springfield Distributor,
>> > > > 2001 Chevy Tracker Ragtop Towd
>> > > > _______________________________________________
>> > > > GMCnet mailing list
>> > > > Unsubscribe or Change List Options:
>> > > >
>> > >
>> > >
>> > > --
>> > > Jim Kanomata ASE
>> > > Applied/GMC, Newark,CA
>> > > jimk
>> > > http://www.gmcrvparts.com
>> > > 1-800-752-7502
>> > > _______________________________________________
>> > > GMCnet mailing list
>> > > Unsubscribe or Change List Options:
>> > > _______________________________________________
>> > > GMCnet mailing list
>> > > Unsubscribe or Change List Options:
>> > >
>> > _______________________________________________
>> > GMCnet mailing list
>> > Unsubscribe or Change List Options:
>> >
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
>
 
Ken -

I don't think your travels count. 23' coaches from what I now observe cannot be compared to a 26' coach in terms of traction problems. Aaron Evens
hit 48 states and documented most of his travels with a 23' coach and there were places his 23' would go and not get stuck that I know for damn sure I
would not get to with my 26' coach, and wider AT tires even. Met him up in Glacier National park, in July, and he had been on the road months and
only stayed in developed campsites 8 nights at that point.

as far as Limited slip, the only Con's I have ever heard other then cost, would be the theory limited slip would get you in some major sliding and
potential steering issues due to sliding on low traction icy roads. However from what I have observed by comments that comes from people that have
never driven or owned this limited slip, and are basing those comments on that theory. I have seem comments from a few that they have not had an
issue when they have been on some of those situations.

adding a limited slip to an already re-geared final drive, seems very reasonable. I do believe it takes a total teardown, and they don't just send
you the actual limited slip to install yourself. You have to have the entire final drive sent in and returned to you with the limited slip.

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/