Any LowBuck but STRONG overdrive option?

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Ironracer

Ironracer

Gearhead
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Lowbuck, but STRONG overdrive? Car is a 74 Duster. Over 400 hp. 4:10 727.
I'm thinking I may need another gear soon...
 
rumblefish360 said:
?????????????
[FOR SALE] - 4 sp O/D package
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I'll check it out! I'm not ready to pounce on anything I was hoping there was like maybe a tranny from a ram that was a 4-speed I could toss a lock up converter in.( I have one from. A lockup 727 laying around )and sling up in my Duster.. just in case I need a Mad Max in a little bit! Not that She's an Australian Ford with a huffer! Lol
 
I’d like to say my heads up my *** showing the manual trans when you said you have a 727. With that said, it has been a while since I seen a 727 OD variant but I’d go with the A-500 variant to free up some hp and loose some weight. Being your cutting a driveshaft down anyway……

Search them for sale adds!
 
rumblefish360 said:
I’d like to say my heads up my *** showing the manual trans when you said you have a 727. With that said, it has been a while since I seen a 727 OD variant but I’d go with the A-500 variant to free up some hp and loose some weight. Being your cutting a driveshaft down anyway……

Search them for sale adds!
Click to expand...
I used to have a bunch of them aluminum case large bearing retainer overdrive 4 spds. I think I sold one for 10 bucks once,like a dumbass ... brand freaking new almost
 
rumblefish360 said:
I’d like to say my heads up my *** showing the manual trans when you said you have a 727. With that said, it has been a while since I seen a 727 OD variant but I’d go with the A-500 variant to free up some hp and loose some weight. Being your cutting a driveshaft down anyway……

Search them for sale adds![/
No Sir ! If I had the coin I go ahead and scoop that up and try to dig up a set of clutch pedals just to try to get started in the right direction
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I reckon it all depends on what you call low buck.
 
Ironracer said:
Like going to a boneyard and pulling a o.d. trans that i could bolt up and go? Lol I see you remember something about adding a lil switch to apply power to the silly niod
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Nothing is a direct bolt in and go except the A833OD 4 speed. I guess if I was gonna do one, I'd probably do the 904 based A500. The GM 200 is a good transmission, but would require beefing up pretty good and also cutting the transmission tunnel.......so if that's the case, keep it Mopar and use the A500.......or 518......whichever, but they are NOT a bolt in deal. Nothing really is except the A833OD. Now....there IS another alternative. You could use the A999 904 lockup transmission. There are a few companies that make custom lockup converters. That would be a direct bolt in. Although not an OD, the converter lockup is very similar to another gear.
 
No Mopar auto is an easy swap. You would want an earlier "H" (hydraulic) IE 46RH as opposed to an RE (electronic) out of the later vehicles. Hydraulic ones are hard to find. 727 based are not an easy physical swap and either 904 or 727 bases swap requires extensive crossmember re-fabrication There are threads on here showing some good details.

There is what is called gearvendors but they might be "cheap"
 
67Dart273 said:
No Mopar auto is an easy swap. You would want an earlier "H" (hydraulic) IE 46RH as opposed to an RE (electronic) out of the later vehicles. Hydraulic ones are hard to find. 727 based are not an easy physical swap and either 904 or 727 bases swap requires extensive crossmember re-fabrication There are threads on here showing some good details.

There is what is called gearvendors but they might be "cheap"
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A friend of mine dad builds a 727 he was a tranny guy so masshole through the car in reverse and screwed it up but that's a 3-speed he said he had a lockup 727 he gave it to me actually it's sitting over in the yard but I don't know if that's actually a 3-speed lockup or not
 
Ironracer said:
A friend of mine dad builds a 727 he was a tranny guy so masshole through the car in reverse and screwed it up but that's a 3-speed he said he had a lockup 727 he gave it to me actually it's sitting over in the yard but I don't know if that's actually a 3-speed lockup or not
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All 727s are three speeds.
 
RustyRatRod said:
All 727s are three speeds.
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That's what I figured. I don't have the numbers on the thing but he told me it's a lock up 727. I'm probably confused cuz I read something about being able to take a lock up converter Indo power to it but that was probably for the overdrive 500 or 518
 
Ironracer said:
That's what I figured. I don't have the numbers on the thing but he told me it's a lock up 727. I'm probably confused cuz I read something about being able to take a lock up converter Indo power to it but that was probably for the overdrive 500 or 518
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It might be a lockup. I never knew they made lockup 727s, but that still mean's it's only a three speed.
 
There was a (add in quotes) “lock up 727” as a HD option in vans and trucks in 78-79’.
It was a standard 727 with a lock up converter set up and a extra electrical plug on the side just like a 904 lock up. Those had a specific number - I don’t know what it is. If you are close to CT I will sell you a lock up converter 904 (I believe complete)cheap.

you said “masshole” so I assume you in New England.
PM me direct.
Joe
 
LOL, yea I read that “Masshole” myself but got confused and still am but I just kept on reading.
 
RustyRatRod said:
Nothing is a direct bolt in and go except the A833OD 4 speed. I guess if I was gonna do one, I'd probably do the 904 based A500. The GM 200 is a good transmission, but would require beefing up pretty good and also cutting the transmission tunnel.......so if that's the case, keep it Mopar and use the A500.......or 518......whichever, but they are NOT a bolt in deal. Nothing really is except the A833OD. Now....there IS another alternative. You could use the A999 904 lockup transmission. There are a few companies that make custom lockup converters. That would be a direct bolt in. Although not an OD, the converter lockup is very similar to another gear.
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I believe there is no need to modify any part of the body to run the GM 200.
 
Ironracer said:
A friend of mine dad builds a 727 he was a tranny guy so masshole through the car in reverse and screwed it up but that's a 3-speed he said he had a lockup 727 he gave it to me actually it's sitting over in the yard but I don't know if that's actually a 3-speed lockup or not
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To be clear I am NOT talking about an actual 727. I'm talking about the newer OVERDRIVE 727 or 904 based boxes, which are (installation and size wise) a completely different deal.

Between all the automatics you have several issues........

1....Compatability of parts from year to year
2....Whether a trans is a lockup converter or not
3....Whether it is the newer overdrive.......and.....
A:Whether it is 904 based and whether that is either hydrualic or electronic
B:Whether it is 727 based and whether that is either hydraulic or electronic
 
Simple question that i havent seen asked, op. Big block or small block?
There is virtually nothing, cheap or otherwise, overdrive for a big block.
 
clinteg said:
Yes several reasons. No need to alter the transmission tunnel. The trans fits as is. The .67 overdrive is better than most 4 speed autos I've seen plus it has deeper first gear than a 727. Better at the track! All the conversion parts are available, these transmissions have been built and proven to hold up to 1000 HP, practically no electronics are there to make the transmission work since it's mostly all mechanical, and nearly every single person who has done this conversion has said "Best money I've spent on my Mopar, and I've spent a lot". I looked at all the different swaps and I liked this one the best. It may seem like a lot of work, but I'd almost bet it's not much worse, if any, than any other overdrive swap. Welding in the US Car Tool crossmember will be the most difficult part probably, and that should be a breeze. Once you have all the conversion parts and crossmember in place, it's a bolt in swap. Mostly what is needed for this swap is research.
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RustyRatRod said:
Yup. The top of the transmission cross member has to be cut.
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Getting a little off track here RRR as this is far from a "low buck" option. @Treblig is running one too I believe. Sure, you need a mount modification but the body fits. The Mopar overdrives need the body modification.
 
Met more than a few guys that will argue that, “The Mopar overdrives need the body modification.” comment.
IDK what the heck they were doing/did/unit used, but I think I heard both.

There are a number of threads here covering this though.
 
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