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Veteran
Posts: 292
 
Location: Twin Cities MN |
Getting ahead of myself here since still putting engine back together, but thought I could use some feedback as to the trans issues I will have to deal with. I have 57 Dodge and 325 hemi is going together now (very slowly, for rear of doing anything wrong and at these part prices, buying one of any part (and there are lots of them..), is plenty.
Anyway, my Dodge transmission has some spline damage on front of trans input shaft so I am thinking those sheared off bits and pieces are probably in the ocnvertor. Not sure, how it happened, but maybe was towed in gear with engine stuck. My uncle that I got the car from (Custom Royal Lancer 2 dr), said he didn't know how it got that way either.
I stumbled across and ad for a Torqueflight that came from a 1958 392 powered New Yorker. It is all complete except for mangled dipstick tube. Even has the TF adapter and torque convertor as well as the flywheel bolts still sticking out from convertor flange.
According to my uncle, the 57 dodge transmission was replaced with a 57 Plymouth transmission back in the sixties, but I am assuming those are identical anyway, so I'll still refer to it as the Dodge transmission.
The 57 trans is air cooled and has the cooling holes and screens in the separable bellhousing. The 58 trans is liquid cooled so it has no bell openings and has trans lines instead. Other than having to install a trans cooler (which does not seem like a bad idea anyway - except for not original), are there any other issues I will have using the 58 New Yorker trans instead of the 57.
Anyone know if the TF trans behind the 57 325 and the 58 392 had different gearing or shift points or anything else that will be a problem if I use it? I am thinking I am probably better off to have the 58 trans rebuilt since it has not obvious damage as the other one does. Or is it a better idea (or even possible) to swap torque convertors and input parts from the 56 trans to the 57 trans if there are drawbacks to using the 58 transmission.
It probably is not going to cost more for one or the other, so if someone can tell me differences between the two trans that could be an issue (or not) and what parts swap between the two trans and what parts don't, I would appreciate a heads up on what to consider.
Thanks, MIke
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Expert
Posts: 4533
 
Location: Ripon, WI | I can't necessarily answer the first question you have. However, if you know of a spare trans somewhere, I say buy it. If the internals of the first trans are fine, you can later sell it. If not, then you have the choice of rebuilding the 2nd trans or robbing parts from it to make one good one. Don't pass up a good trans..... |
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Elite Veteran
Posts: 916
Location: Pau, S-W France | Keep the '58 Tqf and install it, it's a stronger unit than the Plymouth/Dodge ( 5 discs v/s 4 in the rear clutch). All other parts are the same. |
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Expert
Posts: 3402
Location: Chestertown, NY ( near Lake George) | The 392 slightly heavier duty internally as Phil said, other than that is should be a go, I put a 61 Chrysler B block in a 59 Dodge 326. no issues, of course the cooler was the same. the torque convertors are different in respect to stall speed.but the inputs spline and fitment should be th same.
Edited by Shep 2011-12-04 3:25 PM
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Board Moderator
Posts: 3186
Location: The not-so-great, dirty-white North ( Michigan) | There is a trick to get the "best of both worlds" if you want.
The 1958 TF has better internals, so go with it.
BUT, you can use the air-cooled Torque Converter and bellhousing from the 57 trans, also using the cooler flow of the 58 TF.
This way, both the TC and the trans cooler working together will cool the unit better, as the 57 TC will fit the 58 trans.
Also, the stall speed of the 57 TC is better suited for your car, as the 58, being for a 392, will effec tively be a little lower..... |
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Expert
Posts: 3402
Location: Chestertown, NY ( near Lake George) | Are the bellhousings the same for the 392 Hemi and 57 325? |
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Extreme Veteran
Posts: 520
Location: Colorado Springs, Colorado | Yes, they take the have the same spacing. Bolt it up and go!
Edited by Chrispy 2011-12-04 8:52 PM
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Member
Posts: 38
Location: Shawnee, KS | I'm going to sneak in and see if I can do a small hijack. Does the 1957 Torqueflite from behind a 392 have the same 5-disk rear clutch and other internals as the 1958 version? |
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Elite Veteran
Posts: 916
Location: Pau, S-W France | ebbsspeed - 2011-12-07 9:46 PM
Does the 1957 Torqueflite from behind a 392 have the same 5-disk rear clutch and other internals as the 1958 version?
Yes, same trans except late '58 Tqf had some improvements on valve body. |
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57 Dodge & 58 chrysler TF diferences?
