5 Speed

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5 Speed

Postby h-bot » Wed Jan 15, 2003 7:54 am

From: longg01_REMOVE_992110_THIS_@yahoo.com

Does anyone have or know of a 1977-79 t-50 5 speed Transmission for
sale? I want to convert my 1975 4 speed to the 5 speed. So I think
I'd need the driveshaft and the torque arm too? Please email me at
<a href="/group/cosworthvegas/post?protectID=137015091009099153112158148248006241071143042046167121181">Chrislong@n...</a> Thanks again.
~CHRIS
#0754




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5 speed

Postby h-bot » Wed Jan 15, 2003 9:06 am

From: ssafstro_REMOVE_656811_THIS_@yahoo.com

how about the one on E bay.
Is there a Hurst Shifter available for my 5 speed?
God I hate that pattern.
Is there still a Hurst part # for this item,
Steve S
cv 3122




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5 speed

Postby h-bot » Wed Jan 15, 2003 9:17 am

From: longg01_REMOVE_418772_THIS_@yahoo.com

The one on Ebay is 76 model. In 77 they corrected the faulty parts
that make it sieze.
~CHRIS




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5 Speed

Postby h-bot » Wed Jan 15, 2003 12:56 pm

From: cswrth1_REMOVE_270443_THIS_@yahoo.com

To swap a five speed T-50 into a 75, you need the five speed and
drive shaft but the torque are is the same. The difference is in the
bracket for the torque arm not in the torque arm itself. The bracket
for the exhaust hanger is different also if you are using it. The
hardest part is the cross member. In 75 it bolted thru and in 76 it
bolted up. There was an old teck bulletin done on how to modify the
cross member but it will require some welding. The cleanest solution
is to use a cross member out of a 75 Monza with a 5 speed but those
are rare. You will also need to bend the shifter on the T-50. It is
approx. 3" longer and the hole in the trans tunnel is up three
inches. I doubt you want to cut the trans tunnel and patch the
carpeting. I have seen the shifters with the bend work fine in these
conversions. Good luck

Hurst never made a shifter for the T-50. They do make one for the T-
5 if you ever do that swap. That is what I have in 2301. Chris




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5 speed

Postby h-bot » Thu Jan 16, 2003 2:48 am

From: doctorduke_REMOVE_635730_THIS_@yahoo.com

--- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, longg01 <<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245129208071">no_reply@y...</a>> wrote:
> The one on Ebay is 76 model. In 77 they corrected the faulty parts
> that make it sieze.
> ~CHRIS

The post '76 T-50s have better internal parts, but I don't
believe the seizing issue was addressed.

Duke




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5 Speed

Postby h-bot » Thu Jan 16, 2003 4:20 am

From: twincams_REMOVE_336899_THIS_@yahoo.com

--- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, cswrth1 <<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245129208071">no_reply@y...</a>> wrote:
> To swap a five speed T-50 into a 75, you need the five speed and
> drive shaft but the torque are is the same. The difference is in
the
> bracket for the torque arm not in the torque arm itself.

Sorry Chris the 4 speed Torque arm must be modified to work with the
5 speed because the top of the 4 speed Torque arm must be cut to
give clearance for the 5 speed shifter housing. I had to modify the
Torque arm on CV #2864 when I had a 5 speed in the car.

Later

Tim




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5 speed

Postby h-bot » Thu Jan 16, 2003 1:00 pm

From: cswrth1_REMOVE_680318_THIS_@yahoo.com

As for the 76 Cosworth tranny, because there were so many T-50's that
went bad early on, many of the Cosworth five speeds have been
replaced with 77 and on replacements. You need to check the stamping
on the tranny to see if it was an original Cosworth one or not. Just
because it came out of a Cosworth doesn't mean that it is an original
Cosworth one. The TCT portfolio has the info on how to determine
this. Good luck, Chris




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5 speed

Postby h-bot » Fri Jan 17, 2003 7:17 am

From: ssafstro_REMOVE_580902_THIS_@yahoo.com

so I take it the tolences were tight when new and the more you dove
it without gettin on it, the wear in helped? I'm not completely
comfortable shifting with this pattern so as not to hit the incorrect
gate under hard power. With 7600 mi on it I guess I'll let it wear
in, I'll use my mustang 5.0 to beat up on.. thanks I'll look up the
info for future knowlege....
steve s.
cv3122




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5 speed

Postby h-bot » Fri Jan 17, 2003 8:10 am

From: kiva5198_REMOVE_367452_THIS_@yahoo.com

Mine was actually a 77 Pontiac Astre 5 speed, but it had probably
about 100,000+ by the looks of the motor it was attatched to. I
changed out the fluids, put Amsoil synthetic in it (compares to the
Redline in "independant studies") and raced it for one weekend then
blew it up on the drive home easing (I swear) the Cosworth up to
about 6500 since I was on the street. As soon as I went to shift,
BLAM! Sounded like a grenade went off, it was my new clutch and
pressure plate. I guess they couldn't stop that motor from 6500 rpm
instantly. The trans sounded like it was full of gravel as I rolled
to a stop only about 300 ft from my driveway, yes, I liked to enter
it fast.

I have another, early production Vega 140 5 speed that has around
200,000 miles on it. I bought the car with 110k and them put 30k on
it before v-8ing it. I then beat the crap out of that trans (this was
when I was 17) racing everyone everywhere I could. I tell you, first
gear is short with 300 ft/lbs. I then put this T-50 in my Cosworth
and autocrossed it for two years (primarily in first and second gear
high rpm 3.73 gears) and I shifted it hard, very hard...three
clutches hard. This trans I took out to put in the Pontiac one
because it developed a leak and I was having trouble passing tech if
I waited in line too long. After the Pontiac one blew, I put the
Vega 140 one back in, but have only about 30 miles on it since then.

On my G-tech, my Cosworth was putting out only 127 hp (+/-3hp
accuracy accoridng to Car Craft magazine) at the rear wheels. So I
don't personally think that power has anything to do with it.
Especially since I flogged that one for so long. It even had several
hours of 140ish mph when I was commuting from Wyoming to Portland
(don't ask/2.92 gears).

If you can get a Monza style shifter, they have a reverse lock out
feature that I have not seen on any Vega T-50s. When you are shifting
forward, it pushes the shifter over towards the second gear. To enter
reverse, you have to come at it from the right side. It is kind of
hokey, and I think a lot of them broke of over the years, it's just
attatched where the left front shifter bolt goes. The Monza shifter
is also bent to a greater degeree so it fits the 75 Vega body with no
modifications. The 76 Vega style shifter requires about 1/4" of metal
to be removed from the rear of the shifter opening.

Britt



--- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, "cv3122 <<a href="/group/cosworthvegas/post?protectID=061059113121099134218149203101129208071">ssafstro@n...</a>>"
<<a href="/group/cosworthvegas/post?protectID=061059113121099134218149203101129208071">ssafstro@n...</a>> wrote:
> so I take it the tolences were tight when new and the more you dove
> it without gettin on it, the wear in helped? I'm not completely
> comfortable shifting with this pattern so as not to hit the
incorrect
> gate under hard power. With 7600 mi on it I guess I'll let it wear
> in, I'll use my mustang 5.0 to beat up on.. thanks I'll look up the
> info for future knowlege....
> steve s.
> cv3122




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5 speed

Postby h-bot » Sat Jan 18, 2003 3:57 am

From: doctorduke_REMOVE_745284_THIS_@yahoo.com



> If you can get a Monza style shifter, they have a reverse lock out
> feature that I have not seen on any Vega T-50s. When you are
shifting
> forward, it pushes the shifter over towards the second gear. To
enter
> reverse, you have to come at it from the right side. It is kind of
> hokey, and I think a lot of them broke of over the years, it's just
> attatched where the left front shifter bolt goes.
> Britt


All the T-50 shifters have the cam and spring reverse lockout feature
that prevents you from shifting directly from first to reverse. In
normal shifting you just push the stick straight forward and the cam
will force the linkage into the second gear gate. The Monza linkage
just has a different lever.

The CV pattern is known as the "racing five speed pattern" and is
preferable for a road racing car that only uses first gear to exit the
pits. I prefer this pattern to the more common pattern on modern cars
that places first through fourth in the "H" and with fifth up and to
the right.

Duke




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5 speed

Postby h-bot » Sat Jan 18, 2003 7:48 am

From: longg01_REMOVE_268405_THIS_@yahoo.com

Duke, That's what my dad said about the shift pattern. He liked the
fact that second and third were in a straight line. He also had
5.?? gears in the rear end! It was a white 1976 Cosworth in SCCA
ITA about 10 years ago.
~CHRIS




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5 speed

Postby h-bot » Sat Jan 18, 2003 1:17 pm

From: cswrth1_REMOVE_861104_THIS_@yahoo.com

I have had 2 T-50's fail and blow up on me. Both of them happened in
the late 80's and one had about 40k miles and the other had about 70k
miles. Both of them wleded to the main shaft and exploded the
clutch. Recently, a member here had a 5 speed lock up on him, it had
Red Line MTL in it but it doesn't sound like the same failure as the
normal ones. Chris




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5 speed

Postby h-bot » Wed Jan 22, 2003 4:17 am

From: vegaman76_REMOVE_204823_THIS_@yahoo.com

--- In <a href="/group/cosworthvegas/post?protectID=219233066105193209050199029077192253163098100009128121188190230091025019053061151110147">cosworthvegas@yahoogroups.com</a>, cswrth1 <<a href="/group/cosworthvegas/post?protectID=091233212180056219138097203245129208071">no_reply@y...</a>> wrote:
> I have had 2 T-50's fail and blow up on me. Both of them happened
in
> the late 80's and one had about 40k miles and the other had about
70k
> miles. Both of them wleded to the main shaft and exploded the
> clutch. Recently, a member here had a 5 speed lock up on him, it
had
> Red Line MTL in it but it doesn't sound like the same failure as
the
> normal ones. Chris


So is that Red Line MTL tranny fluid bad stuff to use in the 5 speed
trannys

Travis




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5 speed

Postby h-bot » Wed Jan 22, 2003 8:01 am

From: doctorduke_REMOVE_296347_THIS_@yahoo.com



> So is that Red Line MTL tranny fluid bad stuff to use in the 5 speed
> trannys
>
> Travis

No. I reseached Redline MTL thoroughly and decided to switch to it.
That was about five years ago. I have about 70K miles on my warranty
replacement T-50 (original seized at 7000) of which at least 4000
miles is race track hot laps.

Duke




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