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| 904 help https://www.slantsix.org/forum/viewtopic.php?t=37816 |
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| Author: | aspen jim [ Fri Nov 06, 2009 5:56 am ] |
| Post subject: | 904 help |
Ok , here we go . The trans went out on my low milage 78 Aspen (36k) . I do tend to carry a few hundred pounds in the trunk at all times . Ive been doing some reading on this site and it looks like Id be better off getting a trans from a mid 80s model . Any suggestions . Do I look for one out of a car or do I look for one of those t904s out of a truck or van ? And then would it be beneficial to put a shift improver kit in it before installation ? Thanks in advance Jim |
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| Author: | 66aCUDA [ Fri Nov 06, 2009 7:13 am ] |
| Post subject: | |
Jim A 904 is plenty strong. I would just rebuild yours or send to several members here that do rebuild them. No difference in "truck" or car 904's. Shift kit???? are you racing it? V8 internals in a slant 6 case are good insurance. Some one on Ebay in Texas has "NEW" 904's for $350. Just some thoughts, Frank |
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| Author: | Reed [ Fri Nov 06, 2009 7:27 am ] |
| Post subject: | |
The only difference between a 90T and a 904 is the wide-ratio gearset in the 904T and possibly the 904T has a lockup torque converter that your Aspen doesn't, but a 78 Aspen might actually have a lockup torque converter. 904Ts are nice for acceleration, but the gearset won't make that big of a difference. |
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| Author: | SlantSixDan [ Fri Nov 06, 2009 7:52 am ] |
| Post subject: | |
You could buy a brand-new transmission for $350: http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 0479997517 |
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| Author: | bigslant6fan [ Fri Nov 06, 2009 9:01 pm ] |
| Post subject: | trans |
1978 was the first year for lock-up trans,78-79 L-U trans had plenty of problems and are nice transmissions to avoid.Dodge started putting 904s in light duty pick-ups in 1982.They all have L-U,and wide gearset.They also had 1 more clutch disk per drum assembly then then the "car" trans.This is why people say the truck trans is better,but the l-u converter can still cause you problems. Most likely,the l-u converter failed first,and plugged the trans cooler with clutch material,causing the trans to fail.My advice is to find a pre-1977 trans and converter and rebuild that.Also be sure to flush the trans cooler,and lines VERY well. |
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| Author: | aspen jim [ Sat Nov 07, 2009 8:37 am ] |
| Post subject: | |
Thanks for the input . Would anybody have an idea if that trans was still good , I would think it was dried up after sitting for so many years. As far as the cause of my problem . Im quite sure the Torque-Converter went first and clogged the filter and smoked the trans . |
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| Author: | aspen jim [ Sat Nov 07, 2009 8:38 am ] |
| Post subject: | |
The New Trans on Ebay I was reffering to. |
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| Author: | Joshie225 [ Sat Nov 07, 2009 9:39 am ] |
| Post subject: | |
Jim, If I were to by one of those NOS transmissions I would simply examine the external seals to see if they were still pliable and remove the trans pan to make sure nothing crawled inside and died. If I found anything wrong I'd correct it and install the trans. Most of the internal seals look like piston rings and should be fine. |
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