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Old 10-11-2005, 02:32 AM   #1
ChevyMex
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What kind of tranny is this?

Can you please tell me what kind of tranny is this?, is mounted to a 292 L6 1968 chevy short bed mexican truck. Can i just swap this for a th350?

I am trying to repair the AC control assy, i have the replacement arms but no idea where to cut or drill, so if you have a diagram please share to me..

Thanks
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Old 10-11-2005, 02:51 AM   #2
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Looks like a granny four speed to me
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Old 10-11-2005, 06:54 AM   #3
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The automatics have their own cross-member,you`ll need that.
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Old 10-11-2005, 08:45 AM   #4
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looks like an 4 speed granny transmission to me there good trannys had one in an work truck and it would pull anything around work
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Old 10-11-2005, 08:57 AM   #5
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Where are you in Mexico? Maybe I can help. I've done the swap and can give advice or if you are close lend a hand.

You will need:

1. Cross-member from auto truck
2. Remove manual cross member
3. Vacuum line to modulator from carb
4. Kick-down cable set up

My swap went well. I installed a Hurst floor shifter rather than trying to replicate the shifter on the column.

GOOD LUCK !
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Old 10-11-2005, 01:47 PM   #6
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I have a similar tranny in my garage right now, it's a 4spd. Been trying to get rid of it forever.
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Old 10-11-2005, 03:18 PM   #7
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might help.
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Old 10-11-2005, 04:42 PM   #8
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The 4spd in my garage looks like a SM465 or the NP435.
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Old 10-11-2005, 04:43 PM   #9
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Quote:
Originally Posted by sneakysnake
might help.
Yeah Buddy! That is a great pic! Thanks!
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Old 10-11-2005, 07:12 PM   #10
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Im gonna say its the SM465, cuz my NP435 doesnt look like that on the left side
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Old 10-11-2005, 08:06 PM   #11
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Don't forget a tranny cooler too in addition to the list above.
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Old 10-11-2005, 09:46 PM   #12
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Good call LongHorn ! I forgot about that new radiator with the cooler built in I had to buy! A good add-on would also work if the radiator he has now doesn't need replaced.
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Old 10-11-2005, 10:03 PM   #13
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hey shifty your 4 speed is it granny if i not how much u want for it?
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Old 10-11-2005, 11:27 PM   #14
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That is a 435----just like the one in my 68 GMC. The 4 bolts on the back holding the output housing is the give away.
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Old 10-12-2005, 10:57 AM   #15
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Quote:
Originally Posted by truckdude239
hey shifty your 4 speed is it granny if i not how much u want for it?
I know very little about this transmission. Only asking $100 for it, which is what I bought it for not even 4 months ago. Hell, I would give it to you for $75 since you'd hafta come pick it up.

I bought it from another board member down in Orlando for between $100-$150 (I forget). I have most of the brackets and crap that came with it. Need to get it off my hands. I can shoot you some pics if you want.
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Old 10-12-2005, 11:06 AM   #16
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Quote:
Originally Posted by ChevyMex
Can you please tell me what kind of tranny is this?, is mounted to a 292 L6 1968 chevy short bed mexican truck. Can i just swap this for a th350?

I am trying to repair the AC control assy, i have the replacement arms but no idea where to cut or drill, so if you have a diagram please share to me..

Thanks
Not trying to hijack, but that's gotta be a new steering wheel? Looks great!
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Old 10-20-2005, 03:21 AM   #17
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Re: What kind of tranny is this?

Mr. KWMECH, do you know if this tranny (435) has somewhere a place to put the back up switch?
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Old 10-20-2005, 07:16 AM   #18
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Re: What kind of tranny is this?

the back up switch is located on the top left corner maybe broken off
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Old 10-21-2005, 01:25 AM   #19
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Re: What kind of tranny is this?

The steering wheel is not new, i have restored it, polished and painted the cap, even the model is a 1969 in Mexico the steering wheel came with this kind of cap 69 thru 72 models. Another diference is the bed, complete diferent the rear wheel arch is square not like in circle. I have some photos but do not know why i can not post it anymore..

I have looked the top left corner and nothing, any photos?
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Old 10-21-2005, 02:51 AM   #20
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Re: What kind of tranny is this?

Gonna have to add that pic to the FAQ thread.
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Old 10-21-2005, 09:08 AM   #21
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Re: What kind of tranny is this?

Quote:
Originally Posted by ChevyMex
Another diference is the bed, complete diferent the rear wheel arch is square not like in circle. I have some photos but do not know why i can not post it anymore...

Does your bed look like this one?

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Old 10-22-2005, 12:43 PM   #22
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Re: What kind of tranny is this?

Yes!!!!! it looks like my wood bed, the bad thing with this kind of bed is the upper union, in my place with a lot of humidity that union gets alot of rust, i am trying to put the other type of bed. Do you know if these beds were build only for trucks outside the states?
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Old 10-23-2005, 07:40 AM   #23
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Re: What kind of tranny is this?

Quote:
Originally Posted by ChevyMex
Yes!!!!! it looks like my wood bed, the bad thing with this kind of bed is the upper union, in my place with a lot of humidity that union gets alot of rust, i am trying to put the other type of bed. Do you know if these beds were build only for trucks outside the states?

Yes, they never sold that type of bed in the US.
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Old 10-24-2005, 10:48 PM   #24
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Re: What kind of tranny is this?

Quote:
Originally Posted by shifty
I know very little about this transmission. Only asking $100 for it, which is what I bought it for not even 4 months ago.

Ok, so I know more now. It's an SM465 for sure and it has a torque converter attached. According to a website I found about the tranny, here is the info:

The Muncie 465 is the widest ratio 4-speed of the Big Three. It has a granny low and so then just 3 normally usable ratios.

Here are the gear ratios from drivetrain.com:

1st :: 6.55

2nd :: 3.58

3rd :: 1.7

4th :: 1
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Old 10-24-2005, 11:07 PM   #25
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Re: What kind of tranny is this?

Those beds were shipped in pieces,then assembled in Mexico.Trucks were cab`n`chassis,bed option.
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