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Re: [Tigers] axle spline

To: Gary <maliburevue@yahoo.com>, Tiger List Serve <tigers@autox.team.net>
Subject: Re: [Tigers] axle spline
From: Mark Rense via Tigers <tigers@autox.team.net>
Date: Mon, 18 Nov 2019 12:28:13 -0500
Delivered-to: mharc@autox.team.net
Delivered-to: tigers@autox.team.net
References: <1453089245.914279.1573996904080@mail.yahoo.com> <5f92dpjducirone2dtfpkkqi.1573997854932@munroe.ca> <421356218.1718139.1574086874920@mail.yahoo.com>
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Thanks Gary for the clarifications. I bought a LSD from you a while back
and it worked out very well.

I found a 2.72:1 gear set out of =E2=80=9881 Corvette and modded it to fit =
the
Salisbury carrier. I also installed a WIDE RATIO Toploader. This
combination works perfectly with the full-roller stroked 289 that makes
over 370 HP.  The launches are quite spectacular yet I=E2=80=99m turning 28=
00 RPM
at 70.

My other Tiger has a 3.31:1 gear set and a standard close ratio Toploader.
The engine is a very free-spinning 289 tha doesnt mind turning 3500 at 70,
that=E2=80=99s still half of redline on this build. This car is a real trea=
t on
tight twisty roads. The Hurst shifter is a great option.

To each his own.

Bugz

On Mon, Nov 18, 2019 at 9:22 AM Gary via Tigers <tigers@autox.team.net>
wrote:

> Dave,
>
> Stock Tigers came with a Salisbury rearend. Salisbury is the British
> subsidiary of Dana/Spicer Corp. These British units came in Sunbeam Tiger=
s,
> Jag XKEs, AC Cobras and TVR Griffiths, and used 7/16" ring gear bolts and=
 a
> 10 spline (coarse) pinion gear. The factory offered other LAT ratios of
> 3.07, 3.31, 3.54 and 3.73 for those units.
>
> The American version of the Dana 44 rearend uses 3/8" ring gear bolts and
> a 26 spline (fine) pinion gear. Most Tiger owners in the USA, who have
> upgrade to a positraction unit (limited-slip) and changed their rearend
> ratio to something other than the factory 2.88, have installed the Americ=
an
> version with the 3/8" ring gear bolts and switch over to the fine spline
> input flange.
>
> If* y*ou changed back to 2.88s, you would have to find an original
> Salisbury posi unit (rare) or drill out an American unit for the 7/16" ti=
ng
> gear bolts and get a 10 spline input flange.
>
> In the 1980s Dana made Dane 44 2.72 rearend gears for Jeep Wagoneers,
> Cherokees, Grand Cherokees and C3 Corvettes. The 2.72 gears have 3/6" rin=
g
> gear bolts and a fine spline pinion, and will bolt into any Tiger rearend
> that has the American differential.
>
> Since I sold you the posi unit in your car (2009), this is what I
> recommend. The 2.72 gears will bolt right up to your posi unit and you
> can use your existing fine spline pinion gear flange. Changing from 3.07s
> to 2.72s will give you a ~14% drop in rpms in 4th gear, ~300 rpms.
> However, your 1st gear will be taller, too, so do NOT run 2.72 gears with=
 a
> close ratio transmission or you'll burn up your clutch in no time. 2.88
> gears are bad enough with a close ratio in 1st gear, so 2.72s will be wor=
se.
>
> My other recommendation is to convert to a wide ratio transmission and in=
stall
> a 2.90 1st gear (from Dan William's Toploaders). This gives you a fabulou=
s
> hole shot, while not impacting your 4th gear highway cruising. I have
> helped a bunch of Tiger owners convert to this setup and they all love it=
.
> It is the best of both worlds, short of a 5 speed, but at a fraction of t=
he
> cost.
>
> Gary
>
>

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<div><div dir=3D"auto">Thanks Gary for the clarifications. I bought a LSD f=
rom you a while back and it worked out very well.=C2=A0</div><div dir=3D"au=
to"><br></div><div dir=3D"auto">I found a 2.72:1 gear set out of =E2=80=988=
1 Corvette and modded it to fit the Salisbury carrier. I also installed a W=
IDE RATIO Toploader. This combination works perfectly with the full-roller =
stroked 289 that makes over 370 HP.=C2=A0 The launches are quite spectacula=
r yet I=E2=80=99m turning 2800 RPM at 70.=C2=A0</div><div dir=3D"auto"><br>=
</div><div dir=3D"auto">My other Tiger has a 3.31:1 gear set and a standard=
 close ratio Toploader. The engine is a very free-spinning 289 tha doesnt m=
ind turning 3500 at 70, that=E2=80=99s still half of redline on this build.=
 This car is a real treat on tight twisty roads. The Hurst shifter is a gre=
at option.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">To each=
 his own.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">Bugz</di=
v></div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">On Mon, Nov 18, 2019 at 9:22 AM Gary via Tigers &lt;<a href=3D"mailt=
o:tigers@autox.team.net">tigers@autox.team.net</a>&gt; wrote:<br></div><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left=
-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(2=
04,204,204)"><div><div style=3D"font-family:&quot;Helvetica Neue&quot;,Helv=
etica,Arial,sans-serif;font-size:16px"><div style=3D"font-family:&quot;Helv=
etica Neue&quot;,Helvetica,Arial,sans-serif"></div>
        <div dir=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quot;,He=
lvetica,Arial,sans-serif">Dave,</div><div dir=3D"ltr" style=3D"font-family:=
&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif"><br></div><div dir=
=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sa=
ns-serif">Stock Tigers came with a Salisbury rearend. Salisbury is the Brit=
ish subsidiary of Dana/Spicer Corp. These British units came in Sunbeam Tig=
ers, Jag XKEs, AC Cobras and TVR Griffiths, and used 7/16&quot; ring gear b=
olts and a 10 spline (coarse) pinion gear. The factory offered other LAT ra=
tios of 3.07, 3.31, 3.54 and 3.73 for those units.</div><div dir=3D"ltr" st=
yle=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif"><=
br></div><div dir=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quot;,H=
elvetica,Arial,sans-serif">The American version of the Dana 44 rearend uses=
 3/8&quot; ring gear bolts and a 26 spline (fine) pinion gear. Most Tiger o=
wners in the USA, who have upgrade to a positraction unit (limited-slip) an=
d changed their rearend ratio to something other than the factory 2.88, hav=
e installed the American version with the 3/8&quot; ring gear bolts and swi=
tch over to the fine spline input flange.</div><div dir=3D"ltr" style=3D"fo=
nt-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif"><br></div>=
<div dir=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif">If<i style=3D"font-family:&quot;Helvetica Neue&quot;,Helv=
etica,Arial,sans-serif">=C2=A0y</i>ou changed back to 2.88s, you would have=
 to find an original Salisbury posi unit (rare) or drill out an American un=
it for the 7/16&quot; ting gear bolts and get a 10 spline input flange.</di=
v><div dir=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetic=
a,Arial,sans-serif"><br></div><div dir=3D"ltr" style=3D"font-family:&quot;H=
elvetica Neue&quot;,Helvetica,Arial,sans-serif">In the 1980s Dana made Dane=
 44 2.72 rearend gears for Jeep Wagoneers, Cherokees, Grand Cherokees and C=
3 Corvettes. The 2.72 gears have 3/6&quot; ring gear bolts and a fine splin=
e pinion, and will bolt into any Tiger rearend that has the American differ=
ential.</div><div dir=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quo=
t;,Helvetica,Arial,sans-serif"><br></div><div dir=3D"ltr" style=3D"font-fam=
ily:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif">Since I sold you=
 the posi unit in your car (2009), this is what I recommend. <span style=3D=
"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif"><span s=
tyle=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif;f=
ont-size:16px;color:rgb(0,0,0)">The 2.72 gears will bolt right up to your p=
osi unit and you can use your existing fine spline pinion gear flange.=C2=
=A0</span></span>Changing from 3.07s to 2.72s will give you a ~14% drop in =
rpms in 4th gear, ~300 rpms.=C2=A0 However, your 1st gear will be taller, t=
oo, so do NOT run 2.72 gears with a close ratio transmission or you&#39;ll =
burn up your clutch in no time. 2.88 gears are bad enough with a close rati=
o in 1st gear, so 2.72s will be worse.</div><div dir=3D"ltr" style=3D"font-=
family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif"><br></div><di=
v dir=3D"ltr" style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Ari=
al,sans-serif">My other recommendation is to<span style=3D"font-family:&quo=
t;Helvetica Neue&quot;,Helvetica,Arial,sans-serif"><span style=3D"font-fami=
ly:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif;font-size:16px;col=
or:rgb(0,0,0)">=C2=A0convert to a wide ratio transmission and=C2=A0</span><=
/span>install a 2.90 1st gear (from Dan William&#39;s Toploaders). This giv=
es you a fabulous hole shot, while not impacting your 4th gear highway crui=
sing. I have helped a bunch of Tiger owners convert to this setup and they =
all love it. It is the best of both worlds, short of a 5 speed, but at a fr=
action of the cost.</div><div dir=3D"ltr" style=3D"font-family:&quot;Helvet=
ica Neue&quot;,Helvetica,Arial,sans-serif"><br></div><div dir=3D"ltr" style=
=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif">Gary=
</div><div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,=
sans-serif"><br></div></div></div></blockquote></div></div>

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