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1983 Spirit DL |
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SpiritDL1983
AMC Apprentice Joined: Oct/14/2014 Location: channahon Status: Offline Points: 33 |
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Posted: Oct/15/2014 at 8:37pm |
hey guys
i have a 1983 AMC Spirit DL with the 258 l6 its an automatic trans that i narrowed down to the Mfr CD 904 Mfr CD A998 its a three speed gearbox i believe how can i check which one it is? and shifting into drive reverse 1&2 are a little rough, would low trans fluid cause that? thanks
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19608 |
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It should be the A904. The 998 was used behind the 304 V-8 in earlier models and in 4x4 models. It's the same internally as a Chrysler 904 -- the A signifies it has the AMC bell housing pattern. So a Chrysler trans won't bolt up, but all parts except the bell/main case will interchange. It is a three speed.
Yes, low fluid can cause shifting problems. I'd change the fluid and filter first. A plugged filter and old fluid can cause problems as well. Check fluid with engine running and trans in NEUTRAL, not park. In park fluid doesn't flow to the torque converter... at least I seem to recall that being mentioned. The factory manuals say to check in neutral. |
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Frank Swygert
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SpiritDL1983
AMC Apprentice Joined: Oct/14/2014 Location: channahon Status: Offline Points: 33 |
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thanks! i just checked the dip stick and turns out its pretty much empty, is there a drain plug on this trans or is it just the pan? also what type of trans filter should i be looking for?
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19608 |
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Just go to the auto parts store and tell them what car you have (the 258 is a 4.2L) and ask for a transmission filter kit. If they don't have a kit you will need a pan gasket also. You have to take the pan off to change the filter. There isn't a drain plug. On some auto trannys the dipstick tube is screwed into the side of the pan. I think the 904 is that way, but don't recall for sure. If that's the case pull the dipstick tube (unscrew from pan) and most of the trans fluid will come out. There will be maybe a half quart in the pan, so be careful when dropping it. You might just want to top it off and see what happens. You may have a front and/or rear seal leak. If the front seal is leaking (leaking at the bell housing) the trans will need to come out. That would be the best time to drain the fluid. The rear seal can be changed just by removing the driveshaft.
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Frank Swygert
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purple72Gremlin
AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16591 |
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carnuck
AMC Addicted Joined: Mar/31/2010 Location: Seattle Status: Offline Points: 3942 |
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If you have a low vibration that runs with engine RPM, it's almost always the converter neck cracking and throwing off the 6 cyl balance. It tends to get a little worse before letting go unless you do a high torque situation. Chrysler calls their version 904A (for aluminum) The Eagle got 998and some Jeeps got 998 or 999. Some of the full size Wagoneers with 4.2L came with 727 (as did my '84 J10)
Some 904s run a smaller filter but most parts stores carry the bigger filter with both 727 and 9XX gaskets in a "kit". |
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