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Old 04-12-2015, 08:19 PM
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ORBIT 433 ORBIT 433 is offline
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Default 73 trans am
How much would it hurt the value of a matching number 73 trans am auto with air if I put a period correct 4 speed in it.

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Old 04-12-2015, 11:10 PM
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How much would it hurt the value of a matching number 73 trans am auto with air if I put a period correct 4 speed in it.
Prolly not MUCH......unless it's a nice survivor type car.....OR meticulously restored.

It MAY increase resale OR be easier to sell.....if done correctly....

MORE people seem to want STICKS than auto's....

Do it RIGHT....and save the original parts....

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Old 04-13-2015, 08:52 AM
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I agree with 2Many! Go for it!

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Old 04-13-2015, 11:56 AM
dadsformula dadsformula is offline
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Just for info, If originally equipped with a 4 speed, it would likely have been
a Muncie M21 with Big input, and TH400 output. The BW Super T10 was used
in 74 (at least the later part) and would also work just fine, but would not have been
uses in the 73 from Pontiac.

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Old 04-13-2015, 02:23 PM
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Thanks guys. I appreciate the info

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Old 04-13-2015, 03:30 PM
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Cool
I believe the Muncie in 73 was an M20, not M21.

Brew - help me out here.

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Old 04-13-2015, 03:34 PM
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Quote:
Originally Posted by 2manyT/A'S View Post
Prolly not MUCH......unless it's a nice survivor type car.....OR meticulously restored.

It MAY increase resale OR be easier to sell.....if done correctly....

MORE people seem to want STICKS than auto's....

Do it RIGHT....and save the original parts....
X2 get the clutch switch and back drive all installed correctly, the reverse lights working, etc.. correct hump. Its a bit bigger job than most think to do it "correctly"

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Old 04-13-2015, 04:33 PM
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I believe the Muncie in 73 was an M20, not M21.

Brew - help me out here.
M21 for a '73 T/A. I've got one here.
M21 also came in the 455/4 spd Formulas for '73

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Old 04-13-2015, 04:39 PM
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Thanks guys. I plan on an M21. Does any of you guys know what bellhousing I need. And if any of you guys know anyone with any 73 parts I might need I would greatly appreciate it.
Thanks Joe

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Old 04-13-2015, 05:51 PM
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The Trans Am's came with M-20 Muncie's standard 4 speeds that year.

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Old 04-14-2015, 06:16 AM
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Do you guys know what number bellhousing I should have

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Old 04-14-2015, 06:56 AM
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I think there was only one bellhousing used from 1965 - 1979. It was probably also the same for the 301 manuals made in 80 - 81 as well.

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Old 04-14-2015, 07:21 AM
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I have an extra one for $125 shipped if you need it.

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Old 04-14-2015, 09:58 AM
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I think there was only one bellhousing used from 1965 - 1979. It was probably also the same for the 301 manuals made in 80 - 81 as well.
As I recall,there was at least 2 different variations.... the late one (75 and up) carried a different part #....and had mounting provisions for a clutch slave cylinder which was used on a Buick V6

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Old 04-14-2015, 10:13 AM
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Default shifter
Did the 73 get an early or late style shifter handle?

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Old 04-14-2015, 10:16 AM
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Some 70's.....and 71-78 4 speed were all the same chrome Hurst lever......79 went to a shorter version....for some strange reason.....

Camero was different....they used an ITM.....

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Old 04-14-2015, 02:13 PM
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If any of you guys have the correct parts that I will need please PM me
Joe

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