Author Topic: wow it's bem a while .. need a quick fix  (Read 6355 times)

Offline murraygmc

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wow it's bem a while .. need a quick fix
« on: November 21, 2013, 09:46:02 am »
So you see all my pics and all the problems i had ... im sorry iv Ben gone for so long !!! I have had my truck completely restored for almost 2 years now !! sorry i didnt post along the way ... i may post some old picts of the restore job ..  my question is easy .. i think   whats the model of my transmission  i have a 85 gmc witch had a v6 and it is a 4x4 manual ...?? iv since bought a brand new stock 350 from gm .. whole body restore paint and its starting to fade ... man it ben forever since iv ben on this site .. so much good information here!!!!!
85 gmc high serria 4x4

Offline DustyRusty

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Re: wow it's bem a while .. need a quick fix
« Reply #1 on: November 21, 2013, 04:14:54 pm »
It should be a SM465 if it's the granny-low 4-speed manual trans.
1975 K-10 SWB Fleetside - 350/SM465/NP205/D44F 12-boltR, 3.73 gears.  Original owner.
Customized by rust.

Offline Captkaos

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Re: wow it's bem a while .. need a quick fix
« Reply #2 on: November 21, 2013, 07:30:27 pm »
Do you have a picture of the shifter?  If it has a granny LOW it is a SM465, otherwise it could be the Overdrive trans.

Offline murraygmc

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Re: wow it's bem a while .. need a quick fix
« Reply #3 on: November 22, 2013, 02:38:11 pm »
yep its got the granny low  is a SM465 thanks guys !!! its getting pulled iv ben driving it for a year with 1st gear out of it ... ugh its sad im getting real good at driving it shifting from granny to 2nd  .. here is the problem is if I can even manage to get it in first then as soon as the cluch engages it pops out ...
85 gmc high serria 4x4

Offline hatzie

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Re: wow it's bem a while .. need a quick fix
« Reply #4 on: November 24, 2013, 05:19:44 pm »
The A833 MY6 overdrive is a rare option and only used on 2WD.

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Offline Captkaos

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Re: wow it's bem a while .. need a quick fix
« Reply #5 on: December 02, 2013, 11:38:01 am »
The A833 4 speed manual with overdrive (MM7) was standard on the C Series with a Diesel, optional on gasoline
It was standard on 4x4's when a diesel was NOT selected and optional when one was selected.

The MM7 was offered from 1983-1987, and it wasn't a popular option.  The manuals never reference MY6, but I believe it is the 4x2 designation.

Here is bake74's with the transfer case attached to it...
http://forum.73-87chevytrucks.com/smforum/index.php?topic=22115.msg183056#msg183056

Offline VileZambonie

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Re: wow it's bem a while .. need a quick fix
« Reply #6 on: December 02, 2013, 07:08:56 pm »
Does anyone even use 1st gear in the 465 on the street? I never did but I must admit I hate that transmission for a multitude of reasons.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline werewolfx13

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Re: wow it's bem a while .. need a quick fix
« Reply #7 on: December 02, 2013, 07:43:38 pm »
A buddy of mine had to use it to take off in his truck..he got his thoughts backwards and instead of building a firewood hauler with low gears, he built it with absurdly high gears..higher than 2.73's, and ran it with 35" tires..on mildly steep hills unloaded, you had to shift the np203 into low, take off in granny low, crawl into second, and when you topped out third, slip the trans into neutral, transfercase into neutral, double clutch, transfer case into high, transmission into second, and go back through the pattern...royal pain that resulted in the truck getting repo'd by a personal loan company.
Chris
'83 Chevy c10 Silverado SWB
'76 Chevy k20 LWB 6.5'x8' Flatbed
“I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant.”

Offline hatzie

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Re: wow it's bem a while .. need a quick fix
« Reply #8 on: December 04, 2013, 12:00:03 am »
The A833 4 speed manual with overdrive (MM7) was standard on the C Series with a Diesel, optional on gasoline
It was standard on 4x4's when a diesel was NOT selected and optional when one was selected.

The MM7 was offered from 1983-1987, and it wasn't a popular option.  The manuals never reference MY6, but I believe it is the 4x2 designation.

Here is bake74's with the transfer case attached to it...
http://forum.73-87chevytrucks.com/smforum/index.php?topic=22115.msg183056#msg183056

I had no idea GM used that gearbox on 4x4 rigs.  Probably as rare as any square option.

MM7 4wd A833 OD.
MY6  2wd A833 OD.

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SVC & wiring mans --> Here http://tinyurl.com/7387BRD-SVCMAN or My Bucket @ http://tinyurl.com/SQ-SVCMAN
Parts & Illustr Books -->http://tinyurl.com/SqParts
GMSTG Textbooks-->http://tinyurl.com/STG-TEXTBK
Radio Manuals-->http://tinyurl.com/DELCORADSVC