New Process A833 4speed w/ OD MY6 MM7

[HotRodPC]

Sooo, part of the reason I've been looking for prices and parts on the elusive A833/NP440. A guy sold one on FB Square page not long ago for $900 for a 2wd and that didn't even include the bell housing.

I've still not acquired clutch pedals, slave and clutch master for my 85K10, the truck is set up for 700r4 so I'd have to do all the for the conversion too which will cost me more cash I don't seem to be able to come up with, and **** is getting rough around here again with me not working full time and some medical issues costing me time away from work and more expenses, I'm thinking I may have to my sell my 4x4 A833 set up. Of course I'm not going to be willing to just give it away either.

Not asking for buyers at the moment, but for opinions on pricing. If a guy can get $900 for a 2wd A833 trans and shifter that needed rebuilt and that's all, Wouldn't $1000 for a 4x4 Cast Iron A833 trans, with OEM Hurst Shifter, Bell Housing, 32 Spline NP208 Transfer Case that bolts to the trans, and the Rebuild Kit I have for the transmission be a fair deal?

 

[CSFJ]

Sooo, part of the reason I've been looking for prices and parts on the elusive A833/NP440. A guy sold one on FB Square page not long ago for $900 for a 2wd and that didn't even include the bell housing.

I've still not acquired clutch pedals, slave and clutch master for my 85K10, the truck is set up for 700r4 so I'd have to do all the for the conversion too which will cost me more cash I don't seem to be able to come up with, and **** is getting rough around here again with me not working full time and some medical issues costing me time away from work and more expenses, I'm thinking I may have to my sell my 4x4 A833 set up. Of course I'm not going to be willing to just give it away either.

Not asking for buyers at the moment, but for opinions on pricing. If a guy can get $900 for a 2wd A833 trans and shifter that needed rebuilt and that's all, Wouldn't $1000 for a 4x4 Cast Iron A833 trans, with OEM Hurst Shifter, Bell Housing, 32 Spline NP208 Transfer Case that bolts to the trans, and the Rebuild Kit I have for the transmission be a fair deal?

As long as the $900 wasn't a fluke, then I guess it would be a legit asking price. Unless the 2wd ones are even more rare.

 

[HotRodPC]

They are all rare. I've heard of about 7 and it might be a 4 to 3, so it's pretty even for the few I've heard of as far as 2wd or 4wd. IIRC, there is a guy on here that even has a 2wd unit that is Cast Iron instead of aluminum when it's been said, the 2wd unit are aluminum, and the 4x4 units are stronger and cast iron. Though I don't recall ever seeing a 4x4 unit for sale anywhere, other than a complete truck which was a member here also. One advantage to the 2wd unit that might make it a bit more desirable is the fact that I know a couple of people I've seen on the internet who have used them in cars, like a 65 or 66 Impala a guy used one and cut part of his floor board to make room for the shifter linkage.

The cast iron 4x4 unit also has the adapter for the Transfer Case built into the tailshaft of the transmission. That's why the 4x4 unit can't be used in a passenger car. The 4x4 unit also uses a thicker output shaft of 32 spline as a Th400 uses and the 2wd unit used the 27 spline Th350/PowerGlide output shaft.

 

[CSFJ]

Interesting. I knew from the comments on here that they weren't common, but I didn't realize they were that scarce either. I may need to start searching for a rebuild kit so I can maximize the return on the one I found.

 

[HotRodPC]

Interesting. I knew from the comments on here that they weren't common, but I didn't realize they were that scarce either. I may need to start searching for a rebuild kit so I can maximize the return on the one I found.

Rebuild kit is no problem at all. You can get the $149 rebuild kit from ebay with all new bearings, seals and sycnchos. For the $188 kit and it also includes a new countershaft pin.

http://www.ebay.com/itm/Chevy-Stepv...-87-/370708032051?hash=item564febaa33&vxp=mtr

http://www.ebay.com/itm/Chevy-Stepv...Kit-/370411828694?hash=item563e43f5d6&vxp=mtr

 

[Keith Seymore]

I can only assume MY6 is the 2wd drive model and maybe MM7 is the 4wd model. Don't know for sure on that yet.

Sorry to be joining the discussion late -

MM7 is the "merchandised" RPO and "MY6" is the "non-merchandised" RPO.

Basically one is available to the customer to choose and then the powertrain charts/engineering specifications drive the correct detail.

It is perhaps easier explaned by using a different transmission as an example: the three on the tree Saginaw was available in the Squarebody with two different first gear ratios, a 2.54 and a 3.50 low gear.

The customer would say "I want a three on the tree" and choose the merchanised RPO MM3 (aka three speed manual trans). The engineering specifications would then drive the appropriate specific trans, non-merchandised RPO M62 or M64, depending on the rest of the desired powertrain (2wd vs 4wd, rear axle ratio, GVW, etc).

MM4 (merchandised RPO) => M20 (non merchandised) => SM465 four speed, including the creeper gear

Same thing happened with automatic trans (MX1 = non overdrive; MX0 = overdrive automatic).

It is perhaps overkill when only one transmission of a particular type is available, but the system was structured to handle the proliferation of truck drivelines, which were/are mind boggling.

K

 

[Keith Seymore]

Now for a cool tidbit !!! Did you think GM made their own shifter for this transmission like they do most, and then you end up paying $300 or so for a Hurst Competition Plus shifter and stick !!! Nope, Not this time. GM didn't make the shifter for this transmission. I found thru research, GM outsourced the shifter manufacturing to guess who???

Anybody who knows Hurts Competition Plus Shifters, will know this thing has Hurst Comp Plus written all over its design. Only thing I'm not seeing that the Comp Plus has, is an adjustable stop on the mechanism itself. I do like the grease zerk for lubrication though. I'll assure you, the shifter alone is worth the $75 I paid for this trans, crossmember and dshaft. It can use some shifter bushings though, and I know I have a OEM Hurst Blister pack of those around from my old Muncie M21 and M22 Hurst Comp Plus days !!!

This is correct.

In fact, the transmission RPO was "stop ordered" in the fall of 1986 because Hurst was being acquired by Mr Gasket company.

I ordered my '87 pickup during that timeframe and was tracking it's progress through the preliminary build process. I called about once a week to determine where it would be built (Flint Assembly) and when (tentative date established).

After a while I didn't hear anything, so I called again to be told that my truck was on stop order, because of the transmission and the acquisition I just described. The Material people were not sure they were going to be able to get enough shifters during the transition period to support production.

I was pretty bummed and was formulating a Plan B (change to three on the tree, install a Saginaw four speed with a Hurst floor shifter) when, one day, I was walking through the assembly plant and passed by the Motor line. There were pallets and pallets of these transmissions stacked up, just sitting there.

I called the material manager over and asked "...how many of these do you think you have?"

"Prolly a hunnert" he said.

I said "don't cha think we should build 'em out?"

He agreed, so I ran back to my office and pitched my idea to my boss, who is the guy that approved such things.

So - he wrote a Temporary Build deviation to build a quantity of 100 1987 model year pickups with the MY6 trans (one of which happened to be mine).

K

 

[HotRodPC]

So - he wrote a Temporary Build deviation to build a quantity of 100 1987 model year pickups with the MY6 trans (one of which happened to be mine).

K

That's very cool. You still have it today?

 

[Keith Seymore]

That's very cool. You still have it today?

Yes. I drove it off the assembly line myself; I owned it for four years and then sold it to my father-in-law when I was promoted and received a company owned vehicle.

He had it for 18 years and when he passed away in 2008 the family asked if I wanted it back.

I took it back and restored it cosmetically during the summer of 2009. It has been my daily driver since. 215,000 miles. It is the most pleasant driving vehicle I own.

K

 

[DoubleDingo]

Yes. I drove it off the assembly line myself; I owned it for four years and then sold it to my father-in-law when I was promoted and received a company owned vehicle.

He had it for 18 years and when he passed away in 2008 the family asked if I wanted it back.

I took it back and restored it cosmetically during the summer of 2009. It has been my daily driver since. 215,000 miles. It is the most pleasant driving vehicle I own.

K

That is some neat history on that truck! To order it, and get the factory to add a different transmission code, and then to drive it off the line, and also still own it...priceless...

 

[Keith Seymore]

That is some neat history on that truck! To order it, and get the factory to add a different transmission code, and then to drive it off the line, and also still own it...priceless...

Thank you; I started an introductory thread so that we would not get too far afield on this one.

http://www.gmsquarebody.com/forum/showthread.php?p=278260#post278260

K

 

[Keith Seymore]

Sorry to be joining the discussion late -

MM7 is the "merchandised" RPO and "MY6" is the "non-merchandised" RPO.

Basically one is available to the customer to choose and then the powertrain charts/engineering specifications drive the correct detail.

It is perhaps easier explaned by using a different transmission as an example: the three on the tree Saginaw was available in the Squarebody with two different first gear ratios, a 2.54 and a 3.50 low gear.

The customer would say "I want a three on the tree" and choose the merchanised RPO MM3 (aka three speed manual trans). The engineering specifications would then drive the appropriate specific trans, non-merchandised RPO M62 or M64, depending on the rest of the desired powertrain (2wd vs 4wd, rear axle ratio, GVW, etc).

MM4 (merchandised RPO) = M20 (non merchandised) = SM465 four speed, including the creeper gear

Same thing happened with automatic trans (MX1 = non overdrive; MX0 = overdrive automatic).

It is perhaps overkill when only one transmission of a particular type is available, but the system was structured to handle the proliferation of truck drivelines, which were/are mind boggling.

K

I hope my explanation of "Merchandised" vs "non-Merchandised" RPOs was helpful.

I didn't read the whole 18 pages of thread; were there other questions or things that didn't make sense?

K

 

[CSFJ]

I hope my explanation of "Merchandised" vs "non-Merchandised" RPOs was helpful.

I didn't read the whole 18 pages of thread; were there other questions or things that didn't make sense?

K

Made sense to me.

 

[HotRodPC]

I got it. In short, one is special order truck code, the other just standard coming down the assembly line truck.

 

[Keith Seymore]

I got it. In short, one is special order truck code, the other just standard coming down the assembly line truck.

Negative. The codes represent the content, and don't change depending on if standard content or if added content. It's more like an added level of detail.

I thought of perhaps a better example: If you look at your SPID you probably have "Power Brakes" denoted as J50. However, you or I would describe the system as having brake components assigned to JB5 or JB6. So the customer would specify "power brakes" and choose RPO J50 but the engineering release charts would determine the actual system of JB3/JB5/JB6/JB7 or JB8, based on other criteria like GVW.

Incidentally - every truck is a "sold" unit before it is built, so every truck is "ordered". Meaning even trucks that are being built for dealer inventory (rather than an individual customer) have been ordered to contain the specific content they are built with. It's just some are ordered by individuals with specific content in mind, and others are ordered "in bulk" with more generic content for dealers to have sitting around.

K