never seen such?.. 4 speed trans?
Thread Starter
Instructor
Joined: May 2023
Posts: 118
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never seen such?.. 4 speed trans?
'78.. haven't got to tha numbers yet to identify.. has a steel case??? looks jus like any other muncie from tha outside 'cept for tha color difference of "steel vs aluminum"... its original as for all i know..
maybe a saginaw?.. don't remember ever seen' one of those...
maybe a saginaw?.. don't remember ever seen' one of those...
Last edited by tlwjkw; Apr 15, 2025 at 08:30 PM.
Race Director
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From: Sunshine Coast, Queensland, Australia
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My 77 has a Borg Warner Super T10. Not a Muncie. Not certain about 78.
Melting Slicks
Joined: Sep 2004
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From: Northeast
Thread Starter
Instructor
Joined: May 2023
Posts: 118
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thanks for that.. i have discovered that they did build 'em both steel and aluminum.. but they were very vague (numbers wise) on how ta recognize 'em except with a magnet and/or pick it up... go figure, ha.
this whole car is strange.. numbers match for 4 sp. with welded in cross brace but motor has brackets attached for trans fluid lines?.. motor numbers also match.
this whole car is strange.. numbers match for 4 sp. with welded in cross brace but motor has brackets attached for trans fluid lines?.. motor numbers also match.
Race Director
Joined: Mar 2017
Posts: 11,953
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From: Virginia
While it won't help anything that has changed, for $50-, you can get a copy of your dealer invoice from GM, that will tell you every option the car came with. You can also get a "Vehicle Information Kit" with all of the original specs (that PDF is free). Link in my signature.
Melting Slicks
Joined: Aug 2011
Posts: 3,139
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Where is the reverse shift lever located ?
That will ID what tranny you have - 3 levers on the main case - it's a SAGINAW !
It probably is the original tranny - a SAGINAW POS that they called a Muncie because conveniently it was assembled at the original Muncie plant
That will ID what tranny you have - 3 levers on the main case - it's a SAGINAW !
It probably is the original tranny - a SAGINAW POS that they called a Muncie because conveniently it was assembled at the original Muncie plant
Last edited by QIK59; Apr 16, 2025 at 04:53 PM.
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Melting Slicks
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Thread Starter
Instructor
Joined: May 2023
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Thread Starter
Instructor
Joined: May 2023
Posts: 118
Likes: 14
don't need to... jus read tha pdf.... quote from pdf..
"The 1978-79 Muncie is a 2.85:1 wide-ratio manual transmission and used for L48 (350/175, 185, 195HP) applications. The higher ratio was intended to give low er-powered Corvettes some nice punch. This Muncie is a cast-iron case with a 7-bolt cast-iron cover. (Figure 5) The cover is distinguished from a B/W cover by the location of the reverse shift lever shaft. (Figure 6) The reverse shaft protrudes from the Muncie cover (along with 1st & 2nd, 3rd & 4th), while the reverse shaft is located in the extension housing on B/W cases.
"The 1978-79 Muncie is a 2.85:1 wide-ratio manual transmission and used for L48 (350/175, 185, 195HP) applications. The higher ratio was intended to give low er-powered Corvettes some nice punch. This Muncie is a cast-iron case with a 7-bolt cast-iron cover. (Figure 5) The cover is distinguished from a B/W cover by the location of the reverse shift lever shaft. (Figure 6) The reverse shaft protrudes from the Muncie cover (along with 1st & 2nd, 3rd & 4th), while the reverse shaft is located in the extension housing on B/W cases.
Race Director
Joined: Mar 2017
Posts: 11,953
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From: Virginia
Some reasons to post a photo, even though you got the answer you wanted, include:
1. Disprove false statements in your thread (your transmission DOES exist, here's the proof!)
2. Make the Forum a better place by showing thread resolutions, with photos, that help the larger Corvette community, including the folks who don't post.
But that PDF really does cover most of it.
1. Disprove false statements in your thread (your transmission DOES exist, here's the proof!)
2. Make the Forum a better place by showing thread resolutions, with photos, that help the larger Corvette community, including the folks who don't post.
But that PDF really does cover most of it.
Thread Starter
Instructor
Joined: May 2023
Posts: 118
Likes: 14
first i don't feel tha need ta prove it to anyone.. i can see it with my own two (very old) eyes.. i'm not gonna go out and crawl around on tha floor jus ta PROVE it ta anyone...
thanks ta tha ones that actually tried ta help me identify it..
thanks ta tha ones that actually tried ta help me identify it..
Melting Slicks
Joined: Aug 2011
Posts: 3,139
Likes: 262
Some reasons to post a photo, even though you got the answer you wanted, include:
1. Disprove false statements in your thread (your transmission DOES exist, here's the proof!)
2. Make the Forum a better place by showing thread resolutions, with photos, that help the larger Corvette community, including the folks who don't post.
But that PDF really does cover most of it.
1. Disprove false statements in your thread (your transmission DOES exist, here's the proof!)
2. Make the Forum a better place by showing thread resolutions, with photos, that help the larger Corvette community, including the folks who don't post.
But that PDF really does cover most of it.
I'm out of here LOL
Racer
Joined: Jun 2018
Posts: 282
Likes: 139
From: NH
thanks for that.. i have discovered that they did build 'em both steel and aluminum.. but they were very vague (numbers wise) on how ta recognize 'em except with a magnet and/or pick it up... go figure, ha.
this whole car is strange.. numbers match for 4 sp. with welded in cross brace but motor has brackets attached for trans fluid lines?.. motor numbers also match.
this whole car is strange.. numbers match for 4 sp. with welded in cross brace but motor has brackets attached for trans fluid lines?.. motor numbers also match.
My 1978 is all matching numbers and dates including the engine and transmission. The oil pan had never been off until I replace the pan gasket and it has the auto lines clip.