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| Rebuilt transmission https://slantsix.org/forum/viewtopic.php?t=64586 |
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| Author: | Montana A Body [ Sat Mar 07, 2020 4:02 pm ] |
| Post subject: | Rebuilt transmission |
Hello, I was inquiring to a transmission shop about building me a transmission for my /6 1969 valiant. Present engine should be roughly 175 hp 3.23 sure grip 8&3/4 14" tire. Can't remember for sure but something like 225/60(been sitting in garage and haven't looked at em in quite a while!) I am confident in quality, just wondering thoughts on if would suit my application, which is a summer driver, having fun to and from town. Following is components and build offered by shop. Thanks Yeah bud I can build you one for sure.. it'd be roughly $2100/exchange. Would include: Slant 6 Chrysler 904 with low gear set Your choice of high pressure automatic shift or reverse manual valve body Red racing clutches and bands Billet servos Deep aluminum pan with stud kit and reusable gasket Teflon sealing rings HD band strut 4.2 kickdown lever Speedometer blocker or your choice of speedometer gear 11" 2200-2500 stall speed converter Good to 500hp Lead time is 2-3 weeks with 50% due at start of build. This combination won two drag racing championships last year. |
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| Author: | SlantSixDan [ Sat Mar 07, 2020 7:48 pm ] |
| Post subject: | Re: Rebuilt transmission |
Quote: just wondering thoughts on if would suit my application, which is a summer driver, having fun to and from town.
Not even close to a good match. It's a super extra bad match. That's a racing transmission that will be very unpleasant to live with in a street-driven car. It will drain the fun out of your summer fun car almost as efficiently as it will drain massively excessive amounts of money out of your wallet.What's appropriate for the car you're building is a very-close-to-stock transmission, built carefully, perhaps with the mildest TransGo SK-TFSC "shift kit" to refine and improve things a bit without making any new problems. With the stock gear ratios, without all the fancy billet this and high-pressure that and special-ratio other thing and all the rest of the list. |
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| Author: | Montana A Body [ Sun Mar 08, 2020 5:32 am ] |
| Post subject: | Re: Rebuilt transmission |
Thanks for the response. I thought it might not be a good idea but was not sure. It was all this particular shop offered. I seen mentioned and recommended AandA transmissions in other threads. On their site they refer to their small block 904 but I would imagine they offer similar packages for slant six? http://www.aandatrans.com/Departments/C ... sions.aspx |
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| Author: | GregCon [ Sun Mar 08, 2020 6:38 am ] |
| Post subject: | Re: Rebuilt transmission |
Hmm...last night I replied to this and it's gone. I wonder if I did something wrong...? Anyway, in short, that's a ton of money for what is one of the easiest transmissions there is to rebuild. The fact that he also wants a 'core' is further insult. That list of parts shows nothing high-dollar or special to warrant that kind of money. For what you want, as noted, a stock rebuild is 100% fine. It'll last longer than you. I'd probably go with a mild version of a shift kit but that's it. |
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| Author: | SlantSixDan [ Sun Mar 08, 2020 11:05 am ] |
| Post subject: | Re: Rebuilt transmission |
The issue isn't A&A versus whatever that first shop was, the issue is how you're going about this. Again: you don't need to be setting fire to a pile of cash by contracting with a far-away transmission shop for a fancy race transmission; you're not building a race car. If you don't want to try your hand at rebuilding it yourself (which is totally understandable), and your transmission actually needs rebuilding, find a reputable local shop. |
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| Author: | Montana A Body [ Sun Mar 08, 2020 11:49 am ] |
| Post subject: | Re: Rebuilt transmission |
Thanks for the advice. Point well taken and money will be saved! |
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| Author: | hyper_pak [ Sun Mar 08, 2020 12:05 pm ] |
| Post subject: | Re: Rebuilt transmission |
Every area is different, but I have a guy here in Texas, Mopar guy. He runs a transmission business, not out of a garage in his backyard. He built my 904 for $600 dollars. I had the converter already. Mild street strip build, firm shifts, some internal mods for long life. Do you have a local Mopar club where you could ask around? |
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| Author: | GregCon [ Sun Mar 08, 2020 1:11 pm ] |
| Post subject: | Re: Rebuilt transmission |
Assuming you have to buy the all usual parts, a 904 can be rebuilt for around $200 in parts. The converter will be more...it's been so long since I've bought one, I don't remember. |
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| Author: | Reed [ Sun Mar 08, 2020 3:39 pm ] |
| Post subject: | Re: Rebuilt transmission |
For what it is worth, I was terrified of even dropping the pan on an automatic trnsmission until I bit the bullet and taught myself how to rebuild them. Using a factory service manual and the ATSG manual I was able to teach myself how to rebuild 904s in a single weekend and ended up rebuilding three for under $300. I didn't replace any torque converters or order fancy parts, but I did replace worn clutches and bands. Transmissions are still going strong ten years later. My point is that rebuilding an A904 is definitely something you can do youself with basic tools and minimal space. Don't think you have to spend a lot of money paying someone to do it for you. |
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| Author: | GregCon [ Sun Mar 08, 2020 5:49 pm ] |
| Post subject: | Re: Rebuilt transmission |
It helps a lot if there are several 4-6 hour periods that you can depend on when the woman of the house will be away and the dishwasher is available. |
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| Author: | Montana A Body [ Mon Mar 09, 2020 1:35 pm ] |
| Post subject: | Re: Rebuilt transmission |
Thanks again. A local shop that I have used for my wife's 90's Chevy pick up transmission quoted me $750 to rebuild the 904 with a mild shift kit. That would be me supplying the torque converter. Which brings me to another question, I don't dare say final question! http://slantsix.org/forum/viewtopic.php?f=19&t=58884 Is a thread I inquired about torque converter suggestions. Response was a 10" converter with a 3000 stall. Any other suggestions, such as a preferred manufacturer? |
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| Author: | Charrlie_S [ Mon Mar 09, 2020 4:53 pm ] |
| Post subject: | Re: Rebuilt transmission |
Quote: Response was a 10" converter with a 3000 stall. Any other suggestions, such as a preferred manufacturer? Talk to Andre, and tell him Charlie Schmid from Florida refered you. |
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| Author: | Rick Covalt [ Mon Mar 09, 2020 5:37 pm ] |
| Post subject: | Re: Rebuilt transmission |
Honestly the higher the stall you get the more slippage you will have. I am not sure you need a 3000 stall speed to just "go to town". Maybe one step above a stock stall would be better for what you are doing |
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| Author: | GregCon [ Mon Mar 09, 2020 6:56 pm ] |
| Post subject: | Re: Rebuilt transmission |
The problem is if you read his other thread he is doing a lot of mods that will start to not fly with a stock converter. I think the 3000RPM is too steep but it might be not as bad as it seems. |
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| Author: | 69val6 [ Tue Mar 10, 2020 12:51 am ] |
| Post subject: | Re: Rebuilt transmission |
If you pick a torque converter with a higher stall speed than what your cruise rpm is, you will have an excessive amount of slippage at highway speed which will cause excessive heat. I know this from experience in my 69 valiant. You only need a torque converter with a high enough stall speed to get your engine where it starts to make good power. With your estimate of 175 HP you will have a nearly stock cam. It starts making good power at about 2000 rpm. It will be all done just over 4000 rpm. You won't need a converter that stalls much over 2000. Your engine speed at 55 mph should be around 2600 rpm. That's what mine ran with that gear and tire size. A stock rebuild on your transmission with a mild shift kit should be good enough too, like a transgo TF1. Joel |
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