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Stock rear end is NOT posi. It is now called Dana44, same diff as a lot
of 4x4 front as well as others.
A normal rear end shop can put posi in if someone didn't do yours before.
Axles, bearings, hubs are unique Tiger.
Stock is about 2450RPM at 60, way too fast unless you have a big cam IMHO.
Big carb, hopped up 289, you probably get 14mpg highway? Ouch.
I have a stock 5.0L/T-5 wide ratio.. maybe 220HP, 14in wheels =1950RPM
at 70.. NICE. Like a modern car
MPG > 20 but not sure..
Good luck,
Gary
On 11/16/2019 8:02 AM, Joel Martin via Tigers wrote:
>
> The manual shows that Tiger rear ends are:Salisbury hypoid â??4.HAâ?? with
> a 2.88 to 1 ratio.What does the 4.HA stand for?
>
> My understanding is these are posi traction meaning both wheels are
> applying power.
>
> Those of you with 2.88 rear ratio gears, wide ratio 4 speed top loader
> transmissions, what is your RPMâ??s in fourth at 50, 60,70 & 80 MPH?
>
> Those of you running other rear end rations, other factors the same,
> what are your RPMâ??s at the same speed and what ratio?
>
> I like to drive my cars and just got back from a 1,263 mile 6 day trip
> in my original owner 1973 MGB with 229,000 miles on the car.
>
> Things to consider:1966 MK1A with 289 HiPo motor with about 300 HP and
> estimated 9.4.1 compression
>
> 600 cfm 4 barrel Holley carburetor
>
> Headers with 2.25â?? exhaust
>
> 15â?? wheels running 205\50 x 15 tires
>
> Wide ratio top loader 4 speed transmission
>
> Believe Salisbury posi rear end
>
> Closed, open, locked, posi, ratios â?? the list is endless.What I am
> looking for is a very streetable around town and on the highway posi
> rear end ratio that will work well with a good balance between
> acceleration for fun and highway cruising.I am not there yet. I have
> the acceleration for fun part in place but not the highway cruising
> (of course - avoid highways\interstate).
>
> Data means a lot regarding RPMâ??s at speeds between 50 to 80 mph.Those
> of you who have switched ratios, please share your pros and cons.
>
> Thank you for your input.
>
> Regards
>
> Joel Martin
>
>
>
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/tigers http://autox.team.net/archive
>
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>
>
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Stock rear end is NOT posi. It is now called Dana44, same diff as a
lot of 4x4 front as well as others.<br>
A normal rear end shop can put posi in if someone didn't do yours
before.<br>
Axles, bearings, hubs are unique Tiger.<br>
Stock is about 2450RPM at 60, way too fast unless you have a big cam
IMHO.<br>
Big carb, hopped up 289, you probably get 14mpg highway? Ouch.<br>
I have a stock 5.0L/T-5 wide ratio.. maybe 220HP, 14in wheels
=1950RPM at 70.. NICE. Like a modern car<br>
MPG > 20 but not sure..<br>
Good luck,<br>
Gary<br>
<br>
<br>
<div class="moz-cite-prefix">On 11/16/2019 8:02 AM, Joel Martin via
Tigers wrote:<br>
</div>
<blockquote type="cite"
cite="mid:381467494.773614.1573920156530@mail.yahoo.com">
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<p class="ydpe3a33268MsoNormal">The manual shows that Tiger
rear ends are:<span>Â </span>Salisbury hypoid â??4.HAâ?? with
a 2.88 to 1
ratio.<span>Â </span>What does the 4.HA stand for?</p>
<p class="ydpe3a33268MsoNormal">My understanding is these
are posi traction meaning both
wheels are applying power.</p>
<p class="ydpe3a33268MsoNormal">Those of you with 2.88 rear
ratio gears, wide ratio 4 speed
top loader transmissions, what is your RPMâ??s in fourth at
50, 60,70 & 80
MPH?Â
</p>
<p class="ydpe3a33268MsoNormal">Those of you running other
rear end rations, other factors
the same, what are your RPMâ??s at the same speed and what
ratio?</p>
<p class="ydpe3a33268MsoNormal">I like to drive my cars and
just got back from a 1,263 mile
6 day trip in my original owner 1973 MGB with 229,000
miles on the car.Â
</p>
<p class="ydpe3a33268MsoNormal">Things to consider:<span>Â
</span>1966 MK1A with 289 HiPo motor with about 300 HP and
estimated 9.4.1 compression</p>
<p class="ydpe3a33268MsoNormal">600 cfm 4 barrel Holley
carburetor</p>
<p class="ydpe3a33268MsoNormal">Headers with 2.25â?? exhaust</p>
<p class="ydpe3a33268MsoNormal">15â?? wheels running 205\50 x
15 tires</p>
<p class="ydpe3a33268MsoNormal">Wide ratio top loader 4
speed transmission</p>
<p class="ydpe3a33268MsoNormal">Believe Salisbury posi rear
end </p>
<p class="ydpe3a33268MsoNormal">Closed, open, locked, posi,
ratios â?? the list is
endless.<span>Â </span>What I am looking for is a
very streetable around town and on the highway posi rear
end ratio that will
work well with a good balance between acceleration for fun
and highway
cruising.<span> </span>I am not there yet. I have the
acceleration for fun part in place but not the highway
cruising (of course - avoid highways\interstate).<br>
</p>
<p class="ydpe3a33268MsoNormal">Data means a lot regarding
RPMâ??s at speeds between 50 to 80
mph.<span>Â </span>Those of you who have switched
ratios, please share your pros and cons.</p>
<p class="ydpe3a33268MsoNormal">Thank you for your input.</p>
<p class="ydpe3a33268MsoNormal">Regards</p>
<p class="ydpe3a33268MsoNormal">Joel Martin</p>
</div>
<br>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
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