G.M. Progression Chart

[GRIZSS]

If any of you have a G.M. Progression Chart could e-mail it to me. In the move
I must have misplaced it. Thanks

Chuck Thompson
Arrowhead Lock & Key
Lake Arrowhead, CA
866-253-LOCK

[Topshlfpro]

If you know the rules and understand how and why the numbers progress, you can
write out your own card in ten minutes. Give it a try.

[David McLean]

Do you know the three rules concerning this?

1) No more than 2 depth drop between a single space (IE. 2 next to a 4 =
OK - 1 next to a 4 = wrong

2) All cuts must add to and even number

3) No more than three of the same cuts in a row.

If you understand these rules, and think about it, you can progress 6 cut
GM's in your head in just a few moments

If 4 known cuts are ODD you will have a max. of 2 key blanks needed.
If 4 known cuts are EVEN you will have a max of 3 key blanks needed.
--
Visit http://www.thekeyshop.com
E-mail Da...@thekeyshop.com

"Topshlfpro" <topsh...@aol.com> wrote in message
news:20010202210948...@ng-mk1.aol.com...

[Herbert Schlockelmeyer]

Topshlfpro wrote:
>
> If you know the rules and understand how and why the numbers progress, you can
> write out your own card in ten minutes. Give it a try.

We don't neeeeeed no stiiiiiiiinking progression charts!! :)

Determine the total of the last four cuts.
If it's even, your remaining cuts will total an even number.
If it's odd, your remaining cuts will total an odd number.

As long as you've correctly decoded the four cuts, and knowing that
GM MACS = 2, the rest is easy. Assuming you have the correct cuts
and that the lock has been coded to GM factory specs, you shouldn't
burn up more than two or three blanks before you hit it.

Just always be positive of your known cuts, or you'll be burning up
a lot of blanks and swearing to god that some idiot fucked you over
by keying up a GM lock incorrectly. (That *has* happened, BTW)

I used to have some of those little wallet sized progression charts
from Tech-Train, but I haven't had to look at them in years. If you
can't figure it out give Steve Young a call.....he's got 'em.

[GRIZSS]

I appreciate it. Thanks to you all, this way I will remember it instead of
looking for those lousy charts.

Again......Thank You

[Ray]

11 21 31
12 22 42
13 32 53
23 33
24 43
34 44
35 54
45
55

Adding up bitting = even number (If 1st 5=even, last 2=even)
No more than three of the same cuts in a row, max. of same cut is 4
MAC=2

Ray

[Topshlfpro]

also remember that GM never has three cuts in a row of the same depth

[Edskeys]

On six cut yea but I think on ten cuts there can be three.

>Subject: Re: G.M. Progression Chart
>From: topsh...@aol.com (Topshlfpro)
>Date: 2/5/01 8:02 PM Central Standard Time
>Message-id: <20010205210256...@ng-mk1.aol.com>

[Edskeys]

I just read that the 6 cuts can have three cuts in a row too but there must be
at least 3 depths total.

The book also says that on a ten cut the door only has two spaces of the same
depth next to each other but for positions 7 thru 10 there can be three. Hope
this helps.

Glen

>Subject: Re: G.M. Progression Chart

>From: eds...@aol.com (Edskeys)
>Date: 2/5/01 8:58 PM Central Standard Time
>Message-id: <20010205215810...@ng-cr1.aol.com>

[trym...@gmail.com]

Did you ever get a copy of the progression chart? I'm looking for a GM progression chart for the 6 cut sidebar door locks that use the "h" style tumblers.

Thanks

[Stormin Mormon]

I used to have a chart for the six wafer locks,
after you pulled the glove box, and were trying
to make a key to the door and trunk. It's been a
lot of years, but I have it some where. Is that
what you mean?

--
.
Christopher A. Young
Learn about Jesus
www.lds.org
.

[trym...@gmail.com]

Yes, I think so. GM 6 single sided cut that is a sidebar with "h" style tumblers. I have the last four, but need the progression chart to see what the options are for the two tumblers by the key head.

I had seen a chart where you have two columns of Odd and Even. Then you have five rows numbered 1-5. They said you add up the last 4 known tumblers and if it is Even or Odd you pick the corresponding column. Then you look at the tumbler number that sits next to the unknown. And what that number is, you pick the corresponding row. Then you look at the box that matches the row/column you selected. And in that box gives you the tumbler options for the last 2 unknowns by the key head.

Thanks

[Stormin Mormon]

On 10/28/2014 6:12 PM, trym...@gmail.com wrote:
> Yes, I think so. GM 6 single sided cut that
is a sidebar with "h" style tumblers. I have
the last four, but need the progression chart
to see what the options are for the two tumblers
by the key head.
>
> I had seen a chart where you have two columns
of Odd and Even. Then you have five rows numbered
1-5. They said you add up the last 4 known tumblers
and if it is Even or Odd you pick the corresponding
column. Then you look at the tumbler number that
sits next to the unknown. And what that number is,
you pick the corresponding row. Then you look at
the box that matches the row/column you selected.
And in that box gives you the tumbler options for
the last 2 unknowns by the key head.
>
> Thanks
>

Even:

Key one:
11
22
33
44
55

Key two:
13
24
35

Key three:
31
42
53

Odd: Key one:
12
23
34
56

Odd key two:
21
32
43
54

Note: The MACS is three. There will never
be a 1 and 4 next to each other, and
never be a 1 or 2 next to a 4.

For example, if your key is xx1324 you would
start with 12, and try it in the passenger door
(less dirt and debris on passenger side, be sure
to give it a dose of WD-40 or your favorite).
You would not cut 341324 or 451324, as there are
are never a 4 or 5 next to a 1.

Hope that helps. If so, remit $47.50 for
consult.

[trym...@gmail.com]

On Tuesday, October 28, 2014 6:13:09 PM UTC-5, Stormin Mormon wrote:

Thanks.

Though 1324 in your example adds up to 10. So you would start with the EVEN instead of the ODD, correct? If I'm correct, then that means you would start with 11. ?

[Stormin Mormon]

On 10/28/2014 10:16 PM, trym...@gmail.com wrote:
> On Tuesday, October 28, 2014 6:13:09 PM UTC-5, Stormin Mormon wrote:
>>
>> For example, if your key is xx1324 you would
>> start with 12, and try it in the passenger door
>>

>> Hope that helps. If so, remit $47.50 for
>> consult.

>> .
>> Christopher A. Young
>> Learn about Jesus
>> www.lds.org
>> .
>
> Thanks.
>
> Though 1324 in your example adds up to 10. So
you would start with the EVEN instead of the ODD,
correct? If I'm correct, then that means you would
start with 11. ?
>

I'm a public school graduate, so once in a while I
make math mistakes. But I have great self esteem.

Remember the $74.50 consultation fee.