Dust cover Manual Muncie M20 or M21 mid 70's 350 engine

[jolobo64]

Some crazy way my transmission dust cover came off during a night out and now I cannot find a replacement anywhere. I even purchased the TH350/400 but those are way too big as they are for automatic transmissions. I urgently require one if someone can point me in the right direction. It bewilders me that there are no flywheel covers for mid 70 Chevy manual transmissions.

[FlameOut]

I'm kind of in the same boat. I just never had one and not having much luck finding one. I'll be watching this thread

[geezer#99]

Do you mean something like this.
Search for 'inspection plate' on their search box.
http://www.4speedconversions.com/6263757-2

[FlameOut]

Originally Posted by geezer#99

Do you mean something like this.
Search for 'inspection plate' on their search box.
http://www.4speedconversions.com/6263757-2

No, that piece I have. The piece I needed, as I'm assuming the op needs, looks like the cover an auto trans would use

[jolobo64]

No unfortunately neither do I need that. It looks quite similar to the manual flywheel cover on an automatic Trans. The pic you showing I think is for the bell housing.

[geezer#99]

That cover is the same type as an auto tranny will have.
Find a pic for us.

[jolobo64]

Originally Posted by geezer#99

That cover is the same type as an auto tranny will have.
Find a pic for us.

Sorry but it's not I bought the automatic cover TH350/400 even the guy at summit told me it wouldn't fit but I had to try. Problem is, there are many pics of the Automatic covers but I can't find any manual pic covers.

[geezer#99]

You mean like this.
http://www.ebay.com/itm/Full-Size-Ch...-/172172522847

[jolobo64]

Originally Posted by geezer#99

You mean like this.
http://www.ebay.com/itm/Full-Size-Ch...-/172172522847

Geezer thanks a lot I think you might have found it, it looks very similar to the one I lost, just a little afraid because it says 55-62 and my engine is a mid 70,s anybody know if they are all the same?

[michael bustamante]

i have a 1966 283/m21 tranny. ill look to see if the trans plate is on there and let you know.

[jolobo64]

Originally Posted by michael bustamante

i have a 1966 283/m21 tranny. ill look to see if the trans plate is on there and let you know.

Ok and please let me know.

[geezer#99]

That was just an example.
You need to determine exactly what bellhousing you have. Then a pan can be found.
You say m20 or m21.
Do you have a Car type muncie or truck type with granny gear?.

[jolobo64]

Originally Posted by geezer#99

That was just an example.
You need to determine exactly what bellhousing you have. Then a pan can be found.
You say m20 or m21.
Do you have a Car type muncie or truck type with granny gear?.

What I know is that it's in my 64 c10 and its 5.7 350 small block with m21 transmission 4 speed. What's a granny gear?

[geezer#99]

Originally Posted by jolobo64

What I know is that it's in my 64 c10 and its 5.7 350 small block with m21 transmission 4 speed. What's a granny gear?

The truck 4 speed has a super high first gear ratio. Near 6.5 to 1.
Likely called a 'granny' gear cause if you're in first, you're moving about as fast as granny can walkin'!

Easy to spot as they have a shifter in the top of the tranny.
Muncie's for cars have shifters on the side cover.

Can you see the bellhousing number. You might need it.

[jolobo64]

Originally Posted by geezer#99

The truck 4 speed has a super high first gear ratio. Near 6.5 to 1.
Likely called a 'granny' gear cause if you're in first, you're moving about as fast as granny can walkin'!

Easy to spot as they have a shifter in the top of the tranny.
Muncie's for cars have shifters on the side cover.

Can you see the bellhousing number. You might need it.

Well this must be a granny on steroids cause she was built for quarter mile, first gear I'm beating road runner. The shifter is on the side and yes the bellhousing number is visible. And the pic flame out posted is correct, also see my pic

[special-K]

Originally Posted by geezer#99

That was just an example.
You need to determine exactly what bellhousing you have. Then a pan can be found.
You say m20 or m21.
Do you have a Car type muncie or truck type with granny gear?.

Originally Posted by jolobo64

What I know is that it's in my 64 c10 and its 5.7 350 small block with m21 transmission 4 speed. What's a granny gear?

Originally Posted by jolobo64

Well this must be a granny on steroids cause she was built for quarter mile, first gear I'm beating road runner. The shifter is on the side and yes the bellhousing number is visible. And the pic flame out posted is correct, also see my pic

Geezer knows what he is taling about and trying his hardest to help. You seem to need to learn some facts about what you have. Trucks only came with a 4spd with compound reduction first gear...because it's a truck. What you have is a hi-performance car transmission in a truck. The bell housing is a separate component and there are more than one choices that will work. If you really can't find the cover for the bell housing you have, you will have to use a different bell housing. But I seriously doubt the cover you need isn't out there. With no other means of identifying exactly what bell housing you have, you could always trace the mounting surface and send to potential seller to assure a match

[FlameOut]

I'm not sure, but what I think he needs is the cover for the cast iron bellhousing like this one (that is missing) I know it's the one that I need

[FlameOut]

Jolobo, I wonder if this is the one needed? Weird it says V8. I don't see why there would be a difference

http://www.classicparts.com/55-72-Be.../#.V1A8ucW3NA1

[jolobo64]

Originally Posted by FlameOut

Jolobo, I wonder if this is the one needed? Weird it says V8. I don't see why there would be a difference

http://www.classicparts.com/55-72-Be.../#.V1A8ucW3NA1

You know it looks very similar to the one I lost, what I'll do is call them and get the specs for the size and see if I can try and imagine or visually see if it will fit. I'll update you and side note I have ordered before for from that company and they are pretty knowledgeable and helpful.

[jolobo64]

FlameOut

I just spoke to them guess I got a guy who had a bad day but anyway he said the specs are about 7" between the two slots you see where the screws go and about 6" deep/width and between 16" and 18" long those specs after I measured seem to be the best option I have found so far. What about your specs? He clearly said its for any truck 55-72 as long as the transmission is not from much later model than 72. And he said from what I described it sounds like what we need. Worse case can always send it back.

[michael bustamante]

my shifter is on top. i think that mine will not work for a side shift tranny. sorry

[frankslagoon]

It,s just a standard 12 inch trk clutch bellhousing. 60 to 72 and the older pass. cars used the same or simaler set up also.[ATTACH][/ATTACH] first pic is from the rear and second from the front. there are two pieces to the cover. a flat piece that the starter goes through and the pan on the bottom.

[frankslagoon]

I like these bellhousings because you can change the clutch without removing the bellhousing or supporting the engine

[special-K]

Originally Posted by frankslagoon

I like these bellhousings because you can change the clutch without removing the bellhousing or supporting the engine

Can you? Never tried. I always bolt the pressure plate in a pattern that would require rotating the engine that way and removing the bell housing seems easier, as well as having it all opened up seems an easier for alignment. I also always install a new pilot bushing when doing a clutch

[FlameOut]

Thanks for those dimensions, Jolobo. I haven't measured mine, but sure sounds right. I went and ordered one so I'll know Monday if it's correct