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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: anesthes on December 08, 2009, 07:42:51 am

Title: IS this an MY6 / 833 out of a truck?
Post by: anesthes on December 08, 2009, 07:42:51 am

I bought this with the intention of putting it in my Camaro.  I believe it is out of a GM truck, although the numbers seem to reveal the cast was made in '78.. Any input appreciated.  It has the mopar bolt pattern, but a TH350 style rear spline and mount.  I'm trying to understand if it is an overdrive trans or not.

http://members.cisdi.com/~anesthes/a833/1.jpg
http://members.cisdi.com/~anesthes/a833/100_1668.JPG
http://members.cisdi.com/~anesthes/a833/100_1699.JPG
http://members.cisdi.com/~anesthes/a833/bell1.jpg


Any info would be appreciated.

-- Joe

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: frogman68 on December 08, 2009, 08:01:34 am

Yes that is a A833/MY6
No idea what it came out of ? They were used in Chevys from like 81 to 85..

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: anesthes on December 08, 2009, 08:09:52 am

It was last in an Impala, 60s.  The seller cleaned it up, and bailed on using it. He took apart the shifter, so I need to figure out how that goes back together. He was not sure if it was an OD trans or not. Ultimately, that is what I'm trying to determine.

I don't have a FSM on the transmission, so when people say like "count the teeth on the third gen" I'm like "which one is that??" :)

Thanks!

-- Joe

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: zieg85 on December 08, 2009, 09:23:56 am

http://www.slantsix.org/articles/4-speeds/ODA833fourspeed1.htm  may help.  In the GM form they were all OD.

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: frogman68 on December 08, 2009, 09:26:50 am

Got a Chilton or Haynes book ? That has a nice diagram of it
From memory (it could be wrong)the front lever of the trans goes to the arm on the linkage closest to the trans the top rear one goes to the middle and the bottom rear (reverse) goes to the last arm farthest from the trans

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: anesthes on December 08, 2009, 09:55:09 am

It's the actual shifter itself he took apart, so right now it's about 19 parts.. Once I figure out how to get together, I can connect the arms.

So anything that looks like mine, with the GM output shaft is an OD trans?

So there was in fact Iron cased OD versions? Good to know.

Thanks!

-- Joe

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: zieg85 on December 08, 2009, 10:02:23 am

Quote from: anesthes on December 08, 2009, 09:55:09 am

It's the actual shifter itself he took apart, so right now it's about 19 parts.. Once I figure out how to get together, I can connect the arms.

So anything that looks like mine, with the GM output shaft is an OD trans?

So there was in fact Iron cased OD versions? Good to know.

Thanks!

-- Joe

Yep, I have 3 sitting on the shelf, one ready to go in my 86 when time permits

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: anesthes on December 08, 2009, 11:08:40 am

Happen to have any diagrams or pictures of the shifter apart?

Some guys don't like the 1st and 2nd ratios on this trans but, I dunno, I think it would be fine.

Do you guys happen to know off hand what speedo gears fit these?  Are they interchangable with a Th350 for example?

-- Joe

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: frogman68 on December 08, 2009, 11:41:06 am

Quote from: anesthes on December 08, 2009, 11:08:40 am

Happen to have any diagrams or pictures of the shifter apart?

Some guys don't like the 1st and 2nd ratios on this trans but, I dunno, I think it would be fine.

Do you guys happen to know off hand what speedo gears fit these?  Are they interchangable with a Th350 for example?

-- Joe

No but you can try Hurst for it.
They have a program where they rebuild this shifter its like 175 dollars

Update its 250

http://www.hurst-shifters.com/c.723089/hurst-shifter/shifter_rebuild.html

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: anesthes on December 08, 2009, 12:37:44 pm

Dang thats espensive. Looks like I'll learn how to do it myself ;)

So any 2wd 80-86 1/2 ton v8 truck got this trans, as opposed to the SM465 ?

Thanks guys. I appreciate the info

-- Joe

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: zieg85 on December 08, 2009, 12:45:02 pm

From what I have researched it was a very rare option.  The old timers that wanted stick just got the standard 3 on the tree while others needed/desired the SM465 with the low.  Going from memory less than 3% was ordered with the MY6 option.  I have seen them in vans also.  I bought a 1983 GMC just because it had that transmission in it.  Same gear ratios as the 700R4.

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: frogman68 on December 08, 2009, 01:36:20 pm

Quote from: anesthes on December 08, 2009, 12:37:44 pm

Dang thats espensive. Looks like I'll learn how to do it myself ;)

So any 2wd 80-86 1/2 ton v8 truck got this trans, as opposed to the SM465 ?

Thanks guys. I appreciate the info

-- Joe

4wd got em too. didnt think it was a rare thing just used in the C10 and K10's

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: anesthes on December 09, 2009, 07:14:15 am

So there is an option for one with a tailshaft that can bolt to a transfer case? Weird!

-- Joe

Title: Re: IS this an MY6 / 833 out of a truck?
Post by: frogman68 on December 09, 2009, 07:24:35 am

Quote from: anesthes on December 09, 2009, 07:14:15 am

So there is an option for one with a tailshaft that can bolt to a transfer case? Weird!

-- Joe

The whole shaft and tail housing would have to be changed