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Old 05-07-2005, 08:58 PM
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72 dodge dart transmission question

My son just bought his first car which is a mint 72 dodge dart with a slant six and I am not sure what type of transmission is in it, but anyway misteriously the transmission wont go in reverse anymore( I think one too many burnouts which he wont admit to) is this something that is repairable? He had the intentions of down the road putting a V8 in the car but I was hoping not this soon, would the transmission that is hooked up to the six cylinder in the car now work with a V8? If this transmission cant be repaired without rebuilding the whole thing could he put a 727 in it for now until he does put a V8?

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Old 05-08-2005, 08:29 AM
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No mix.The bellhousing shapes are different.
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Old 05-08-2005, 09:48 AM
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The trans in the car now is a torqueflight automatic and certainly is repairable. I'm not sure if the bolt pattern of the slant 6 version is the same as the small block V8 or not but if I was you I'd just have the current trans fixed and let him drive it for a while and get some experience before allowing him to go to a V8.

If you think he's going to be a bit hard on it just have your trans guy install a shift kit which will help give it a bit of a longer life under harsh conditions.
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Old 05-08-2005, 10:25 AM
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starter location on slant 6 is different from a V-8
Dont worry how old you are... it is the mileage on your body that adds up.
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Old 05-08-2005, 01:04 PM
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Assuming you have an automatic:

Heres a discussion on the A body 904a trans and comparison with the 727:

Rebuild kits are on Ebay frequently. All/6's used the smaller 904a trans. For a cheaper performance increase and less effort, you might want to go to a 2bbl carb (use an adapter plate) and install the optional 3.55 factory diff ratio. The standard ratio rear was 2.76 on your car. It should have the 7-1/4" axle and possibly a tag attached with the ratio on it. Ebay also has performance intakes, both 2bbl and 4bbl from time to time.

Putting 8 where a /6 lived is possible, but involved. The gear change and upgraded carb will get you cheaper performance. Then work on the exhaust system and ignition upgrades. Performance will increase as well as milage.

Make it a project with your son and he will enjoy the results.

For more info go here:

Last edited by pronash; 05-08-2005 at 01:26 PM.
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