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Tranny with 440 question #466769
09/13/09 04:17 AM
09/13/09 04:17 AM
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Portland , Oregon, United Stat...
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smokes Offline OP
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I have a '68 440 that I have built for my '69 charger. I have the opportunity to purchase a '78 Dodge truck with a 400 and a big block 727 tranny with it that I was hoping would work with my 440. I am wondering if this tranny will bolt up to my engine and be the same as if I purchased a '68 727? If it is not what years of trannys should work with my engine? Any help or input is appreciated!


Looking for a clean w150 or w200 **72-80 body style In the Pacific Northwest**
Re: Tranny with 440 question [Re: smokes] #466770
09/13/09 04:28 AM
09/13/09 04:28 AM
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1_WILD_RT Offline
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The trans will bolt up but the torque convertor will have weights designed to balance the cast crank 400... If you were planning to replace the torque convertor then no biggie.... The earlier trannies tend to have heavier duty clutch packs... Though a truck unit likely has good stuff in it... I've taken apart a few 75-77 vintage big block trannies with only 3 plates in the front clutch.. earlier stuff even smallblock always had 4 plates...

Re: Tranny with 440 question [Re: 1_WILD_RT] #466771
09/13/09 07:21 AM
09/13/09 07:21 AM
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Upper Midwest
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So what's teh big deal with te weight??? All you have to do is knock or cut it off and the the converter will work on a internal balanced engine like the 383. If the transmisssion is from a standard cab 2 wheel drive it should bolt right up but if it is from a 4X4 it will have a different tail shaft and housing or long wheel base truck will also most likely have a short tail housing and shat.

Re: Tranny with 440 question [Re: MoparforLife] #466772
09/13/09 10:52 AM
09/13/09 10:52 AM
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Quote:

So what's teh big deal with te weight??? All you have to do is knock or cut it off and the the converter will work on a internal balanced engine like the 383.





Yeah you can knock it off, I've done it a few times... I've also had one the welds were so deep it leaked once the weight was removed...

Re: Tranny with 440 question [Re: 1_WILD_RT] #466773
09/13/09 04:31 PM
09/13/09 04:31 PM
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Portland , Oregon, United Stat...
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Quote:

The trans will bolt up but the torque convertor will have weights designed to balance the cast crank 400... If you were planning to replace the torque convertor then no biggie.... The earlier trannies tend to have heavier duty clutch packs... Though a truck unit likely has good stuff in it... I've taken apart a few 75-77 vintage big block trannies with only 3 plates in the front clutch.. earlier stuff even smallblock always had 4 plates...






My engine has 450 horse and I will be putting a load on the tranny via burouts, racing, etc. Would the truck tranny not hold like an older tranny would?


Looking for a clean w150 or w200 **72-80 body style In the Pacific Northwest**
Re: Tranny with 440 question [Re: smokes] #466774
09/13/09 07:02 PM
09/13/09 07:02 PM
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Joplin, MO USA
Robbins Offline
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I would just build it for what you need. The trans itself can be built to do anything you want. Like said above it should just bolt in. Get the tq that internally balanced (that is if you built the 440 internally balanced) and get it to match your cam and have fun.

If your not going to have the trans built for now and you know it's a good trans get a tq for your application and go have some fun. It may not last........then again it could last a long time.


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Re: Tranny with 440 question [Re: Robbins] #466775
09/13/09 09:26 PM
09/13/09 09:26 PM
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Update on the tranny. The truck is a 78 Dodge 1 ton with the heavy duty running gear. I would assume that the 727 would be pretty stout since it is for a 1 ton and is bolted up to a 400. Good input so far. As per the previous post correct me if I am wrong but it looks like the tranny from a 68 charger would be the same as this tranny except for the actual year it was made and that it is externally balanced. If the truck was a 4x4 then the tranny would not work but if it was 2wd then they should be the same length?


Looking for a clean w150 or w200 **72-80 body style In the Pacific Northwest**
Re: Tranny with 440 question [Re: smokes] #466776
09/13/09 09:32 PM
09/13/09 09:32 PM
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Pretty much... There are differences but the unit will still bolt in & function fine...

Re: Tranny with 440 question [Re: 1_WILD_RT] #466777
09/13/09 11:36 PM
09/13/09 11:36 PM
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Florida
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unless the 1 ton has a short shaft with a bolt on yoke

it will still fit,just need to build a drive shaft with a splined slip yoke on it

I did that in a 68 Dart and SB short shaft bolt on yoke 727 from a club cab truck

my MH short BB 727 is diff mount location but with some fabing its in the 85 truck now,and I am building the dive shaft with a slip yoke in it


Re: Tranny with 440 question [Re: smokes] #466778
09/13/09 11:55 PM
09/13/09 11:55 PM
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Bowie, MD
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I think John Kunkel mentioned that some truck tailshafts may not have a mounting boss on the bottom for a console shifter, so keep that in mind if your car has one. Here is a pic from John's photo album showing the truck tailshaft at the top and car tailshaft at the bottom.


Re: Tranny with 440 question [Re: Reggie] #466779
09/14/09 03:38 AM
09/14/09 03:38 AM
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Portland , Oregon, United Stat...
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Quote:

I think John Kunkel mentioned that some truck tailshafts may not have a mounting boss on the bottom for a console shifter, so keep that in mind if your car has one. Here is a pic from John's photo album showing the truck tailshaft at the top and car tailshaft at the bottom.







Oh, really good point! I will have to take that into account if I want to run a consule in my charger! Good thing to think about!


Looking for a clean w150 or w200 **72-80 body style In the Pacific Northwest**
Re: Tranny with 440 question [Re: smokes] #466780
09/14/09 04:09 PM
09/14/09 04:09 PM
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Rio Linda, CA
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Also be aware that some trucks had a 2-piece driveshaft with a short tailhousing with a fixed yoke, not easily adapted to a passenger car.


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Re: Tranny with 440 question [Re: John_Kunkel] #466781
09/16/09 03:48 PM
09/16/09 03:48 PM
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Portland , Oregon, United Stat...
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I am picking up the truck tonight and will take some pics of the tranny and post them soon so you guys can see it. I think it will work but wanted your opinion to make sure it is compatible with my engine before I get it rebuilt.


Looking for a clean w150 or w200 **72-80 body style In the Pacific Northwest**






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