Anyone have a Muncie M21 four speed going spare?

[Blondie69]

Good evening
I'm looking for a donor Muncie M21 four speed. Something in a usable condition but ideally a functional ready to go.
My big block 1969 C3 has eaten the current Muncie 21. I understand they are rare but someone may have one sitting under a bench.
Thank you for your thoughts and ever hopeful

 

[Roscobbc]

Barb - there are two 4 speed Muncie advertised on Facebook Marketplace. One for £999 came on 3 days ago - no mention of whether a M20 or M21 - the other at £1400 appears to have come off a SBC powered car so may be a M20. Is yours an M21 like mine?. I think both are a little expensive. The Chodosh's may have an M21 I'll ask Bernie tomorrow for you.

 

[Blondie69]

Hi Ross. Yes a M21 matching numbers so original with the car - 1969. It has lasted well. . Thank you.

 

[Blondie69]

Hi Ross. Yes a M21 matching numbers so original with the car - 1969. It has lasted well. . Thank you.

I have decided to get that one rebuilt rather than swop it out for another. It's too special.

 

[Roscobbc]

I have decided to get that one rebuilt rather than swop it out for another. It's too special.

A better move perhaps to have the existing 'box rebuilt - its a lot of work to fit an unknown quantity gearbox......only to later find that its knackered!

 

[Blondie69]

A better move perhaps to have the existing 'box rebuilt - its a lot of work to fit an unknown quantity gearbox......only to later find that its knackered!

Yes I have a great guy helping me with this. Just need to find a donor now. I bit like finding a unicorn but worth it.

 

[Roscobbc]

When you say 'donor' I presume you mean another gearbox needing re-build. What has happened to your existing gearbox? - is the casing irreprably damaged?

 

[Oneball]

Everything for a Muncie is still made, cases are rarely beyond repair. What bits do you need?

 

[Blondie69]

When you say 'donor' I presume you mean another gearbox needing re-build. What has happened to your existing gearbox? - is the casing irreprably damaged?

It needs a complete gearset change. It looks like the clutch hasn't been clearing properly and its been crunching through the gears and Taken off the synchro teeth. So I am looking at rebuilding the original gearbox if possible.

 

[CaptainK]

+1 to rebuilding the original gearbox. Then you know its a known good quantity, with warranty, and should last you a long time with added benefit you are keeping the car's originality. Getting a second hand "unknown" gearbox is just risking issues later down the line.

That said, if my original 4 speed died in mine, I suspect I'd probably "exaggerate" it a bit more so that my Financial Planner (wife ) will allow me to allocate funds to get a 5 speed gearbox into the car

 

[Oneball]

I’ve got Muncie parts from www.5speeds.com and www.autogearsyr.com. I can recommend both.

 

[Blondie69]

I’ve got Muncie parts from www.5speeds.com and www.autogearsyr.com. I can recommend both.

Thank you

 

[Roscobbc]

It needs a complete gearset change. It looks like the clutch hasn't been clearing properly and its been crunching through the gears and Taken off the synchro teeth. So I am looking at rebuilding the original gearbox if possible.

Not so many people here in UK who are knowledgable with Muncie variants - who has diagnosed it needs a new gearset?

 

[Blondie69]

+1 to rebuilding the original gearbox. Then you know its a known good quantity, with warranty, and should last you a long time with added benefit you are keeping the car's originality. Getting a second hand "unknown" gearbox is just risking issues later down the line.

That said, if my original 4 speed died in mine, I suspect I'd probably "exaggerate" it a bit more so that my Financial Planner (wife ) will allow me to allocate funds to get a 5 speed gearbox into the car

.

Not so many people here in UK who are knowledgable with Muncie variants - who has diagnosed it needs a new gearset?

Clive Lansdale in Norfolk. Have you heard of him?

 

[Roscobbc]

.

Clive Lansdale in Norfolk. Have you heard of him?

Sorry Barb - don't know him.