[coslanzetta]

I have a 1970 gto with a m20 I am goin with an autogear m23 I was told the shifter plate might be different with a big tail shaft vs what I have now could be the same ..I don't know..I also called the parts place and they told me that 1970 -72 had same part number for the shifter plate...I'd like th have all the parts I need for the swap before I start on it..any help would be appreciated thx

[coslanzetta]

Can't belive nobody here knows this ..figures..

['ol Pinion head]

Originally Posted by coslanzetta

Can't belive nobody here knows this ..figures..

Will try to answer, & will answer this question as if it was asked in the '70-72 A-body Tech forum.
For one, am making it common practice to NOT answer questions in the Street forum, just too much BS.

Early Muncie 4spds originally came with the small 27 spline output shaft & one of several styles of matching rear tailshaft housing (5 bolt hole bosses in a W pattern). This style of Muncie 4spd, when equipped with a factory Hurst shifter, required a cast aluminum shifter mounting plate with mtg holes, fairly tight. A reproduction of that mounting plate has been avail through catalogue vendors for near 35 years.

Late Muncie 4spds ('71-74 usage) came with a large output shaft & matching rear tail housing with 3 spread out bolt hole bosses. The position of these mtg bosses, required the used of a stamped steel mounting plate for the shifter. a reproduction has been avail for the last 15 years. Late Muncie 4spd's design allowed the use of the same driveshaft as was used in same vehicle when equipted with a short tail Turbo 400 & the medium length ('67-74) Turbo 400 driveshaft yoke.

In the case of an aftermarket gearset Muncie 4speed, built off either an aftermarket SuperCase, or off an original Muncie case, the choice of which mounting plate will come down to what tailshaft & what style tailshaft housing was used in the build.

[coslanzetta]

It's gona be an aftermarket tail shaft housing

[Scott Thelander]

we dont even know what shifter your running now or mounting plate being used ...

we can hardly speculate except if its totally original .............

"Can't belive nobody here knows this ..figures.."

and poppin off this comment less than 12 hours after your original post ...
overnight no less ....

didnt make me wanna answer anyways ......... Im surprised Pinion did...

and

I have an answer also .......... similar to pinions ,,, but just didnt want to post after reading that

if you cant look at your tranny now and compare the mounting bosses between old and new ...

we are just guessing ...

[coslanzetta]

Then don't answer I'll figure it out myself Mr sensitive

[Peter Serio]

Hi Mr. Coslanzetta, If you post a photo of the new transmission I'll try and answer your question. I would like to see the side of the tailshaft housing to which you would attach to it the mounting plate and then the shifter. Is your plan to use a stock original Hurst shifter for this car? The one with the tall round chrome stick.

[Scott Thelander]

I do know
and
your bein an azz .. I have em both sittin on my bench with shifters on em

[coslanzetta]

Stick them up your ass then jackass..sorry everybody doesn't know every thing like u think u do ..

[Scott Thelander]

whooh !

'ol pinion called it ... another one for the record
"For one, am making it common practice to NOT answer questions in the Street forum, just too much BS."

you dont even answer the questions I / we asked to help you out ...

you just jump my azz ....... and your sorry for everybody ?? I doubt it ....... with that attitude
your lucky
you have
2 of the nicest most knowledgeable gents on here are trying to help you .... Mr Serio and 'ol pinion ...

I almost went to the shop and took pictures for you .. of the 2 differences

but I am glad I temporarily forgot how to post em on here ......

have a good time ........

L 8 R

[coslanzetta]

Look how he responded and look at yor smart ass response ..bIg differnce..he commented like a normal person not knowing anything u responded like an arogant know it all

[coslanzetta]

Good day to u too

[John Milner]

If you have the 32 spline tail shaft with the 3 bolt holes like OPH was talking about, you need Hurst shifter plate 195-7773. I attached a picture of my M22 with a 32 spline tail housing for reference. If you use the Hurst plate I gave you the numbers to, your shifter will come out in the factory location.

[coslanzetta]

OK Kool John thx..buddy of mine sent me that part number earlier today so he was right just not totally sure ..