Do 1956 powerglides have cooling lines?

[Alexander C.]

My 1956 currently has a 3-spd and I am in the process of tracking down a correct powerglide. To that end, I have bought a brass reproduction radiator and specified it was for an auto. I've never owned a car this old but I'm used to auto transmissions having cooling lines going into the radiator.

How are the 1957 powerglides cooled?

Thanks!

Alex

[Roy B.]

Re: Do 1956 powerglides have cooling lines?

NO C1 used cooling lines
Car V8 had 18 nuts
Corvette had 33 nuts so Corvette had balls 55 to 61 PG

[Alexander C.]

Re: Do 1956 powerglides have cooling lines?

Ok great, thank you!

I've read that 3737867 is the correct P/N for a 1956 Corvette powerglide. What else is casted onto the case? Are there any date codes or anything? I want to find a powerglide that is exactly date coded for my car production date and correct in every way possible.

Thanks!

Alex

[Roy B.]

Re: Do 1956 powerglides have cooling lines?

Ok great, thank you!

I've read that 3737867 is the correct P/N for a 1956 Corvette powerglide. What else is casted onto the case? Are there any date codes or anything? I want to find a powerglide that is exactly date coded for my car production date and correct in every way possible.

Thanks!

Alex

Yes! there are date codes the 57 is
Basically the same as the 56 vett, the lever for shifting on the L/S has a hole for the safety Switch rod, short tail housing that holds the shifter assy and has no Vacuum modulator like 58 up PG's.

[John S.]

Re: Do 1956 powerglides have cooling lines?

1956 main case #3708134, converter housing #3708188 for the corvette. passenger car uses converter housing #3719243. date codes on the housings are a letter for the month, followed by date of month, and the last digit will be a 6 for 1956. example G156, july 15,1956. both housings have date codes, the main case # and date code is on the bottom side of the case. the converter housing date is on the back, driver side of the converter housing, while the converter housing # is on the back, passenger side of the converter housing. the corvette needs a hole in the shifting linkage arm for the neutral safety switch connecting rod. the passenger cars do not have this in their linkage.

[John S.]

Re: Do 1956 powerglides have cooling lines?

a 57 powerglide was also mentioned. in 57 corvette uses the #3719243 converter housing.

[Alexander C.]

Re: Do 1956 powerglides have cooling lines?

Hmmm, The Corvette Restoration and Technical Guide clearly mentions 3737867 as the correct P/N for a 1956. Is it wrong or is this P/N not actually casted onto the case and just used in thier parts systems as a reference number or something?

[John H.]

Re: Do 1956 powerglides have cooling lines?

Hmmm, The Corvette Restoration and Technical Guide clearly mentions 3737867 as the correct P/N for a 1956. Is it wrong or is this P/N not actually casted onto the case and just used in thier parts systems as a reference number or something?

Alexander -

Where do you see that part number? I couldn't find it in the '56-'57 RPO 313 section.

[Alexander C.]

Re: Do 1956 powerglides have cooling lines?

Page 132, bottom right, paragraph 2. It mentions 2 powerglides for 1956, 3719245 and then the 3737867 I mentioned. The later is what mine would have had being that I was the last few days of 1956 production.

May I ask what source you are citing? I'm very new to all of this and I want to be very open minded to figuring out exactly what would be correct.

Alex

[John S.]

Re: Do 1956 powerglides have cooling lines?

alexander, if you need a source get "corvette by the numbers" by alan l. colvin. 56 powerglide listed on page 385. will also tell you what to look for on the 56 corvette tailshaft.

[Alexander C.]

Re: Do 1956 powerglides have cooling lines?

alexander, if you need a source get "corvette by the numbers" by alan l. colvin. 56 powerglide listed on page 385. will also tell you what to look for on the 56 corvette tailshaft.

Perfect, I actually have that book on order as we speak anyway.

Then I'll just have to figure out which book to believe lol.

Thanks!

Alex

[John H.]

Re: Do 1956 powerglides have cooling lines?

Page 132, bottom right, paragraph 2. It mentions 2 powerglides for 1956, 3719245 and then the 3737867 I mentioned. The later is what mine would have had being that I was the last few days of 1956 production.

May I ask what source you are citing? I'm very new to all of this and I want to be very open minded to figuring out exactly what would be correct.

Alex

Alex -

I was looking for it in the FOA 313 (Powerglide) section of Noland's Vol. I book; didn't think to look in the "Transmissions" section.

Just looked in the RPO 313 (Powerglide) section of the '56-'57 Assembly Manual (sheet 1.00), and it calls out #3738797 for the transmission assembly; the revision block for that page says it replaced #3743597 on 2/25/57. The sheet was also redrawn on that date for 1957, so the previous history for '56 was lost.

Those are the "assembly" numbers, and most likely don't appear anywhere on the transmission.

[Alexander C.]

Re: Do 1956 powerglides have cooling lines?

Ah, that makes sense! Thank you for the clarification.

Alex

[Bill H.]

Re: Do 1956 powerglides have cooling lines?

One big difference (may be others) is in the kickdown linkage -- I am fresh off of that battle. If you find a '56 and it has all the kickdown linkage you are in good shape if not just knowing what to look for can be problematic. If you need, I can send pics of both 56 and 57 so you may see the difference let me know.