Might I suggest new front seal? If its "on the ground" easier to replace it now
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| any recommended trans additives? https://slantsix.org/forum/viewtopic.php?t=30441 |
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| Author: | KBB_of_TMC [ Fri Aug 08, 2008 9:32 am ] |
| Post subject: | any recommended trans additives? |
I've an old A/T w/ low mileage, but has been sitting for many years. Is there any additive or snake oil anyone recommends to help ensure it's smooth operation when I fire it up again, or is just a fluid and filter change the best way to go? |
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| Author: | Joshie225 [ Fri Aug 08, 2008 9:38 am ] |
| Post subject: | |
Just new fluid and filter. No snake oil. |
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| Author: | Reed [ Fri Aug 08, 2008 9:40 am ] |
| Post subject: | |
I would recommend replacing the fluid and filter, but while you are in there doing a couple of free modifications: (1) Remove the accumulator spring (2) Adjust the line pressure screw as far out as it will go without falling out of its holder (3) adjust the bands I did these modifications to a 1974 727 that I got for free from Eric W who got it from a junkyard. THe transmission had been sitting in Brett's garage for a few years so I would guess that its condition is comparable to your transmission. I installed the tranny in my brother's van and it has worked flawlessly for over a year now. It shifts nice and firm too. Lucas makes an ATF additive, but that would be the only one I would try. |
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| Author: | 6shotvanner [ Fri Aug 08, 2008 10:42 am ] |
| Post subject: | |
Might I suggest new front seal? If its "on the ground" easier to replace it now
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| Author: | Reed [ Fri Aug 08, 2008 10:56 am ] |
| Post subject: | |
Second the front seal suggestion. |
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| Author: | SlantSixDan [ Fri Aug 08, 2008 12:09 pm ] |
| Post subject: | |
Increasing the line pressure slightly is OK. Backing the adjustor out until it's just shy of falling out is unwise to say the least, unless what you're trying to cause is improper shifting and early seal failure. |
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| Author: | Reed [ Fri Aug 08, 2008 12:39 pm ] |
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Interesting. I just followed the recommendations of several Mopar Magazines. It has worked fine for my brother for over a year now. |
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| Author: | Charrlie_S [ Sat Aug 09, 2008 9:30 am ] |
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Quote: Interesting. I just followed the recommendations of several Mopar Magazines. It has worked fine for my brother for over a year now.
Several Mopar mags, also recommend replacing the slant six, with a V-8, under all conditions, also. 
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| Author: | KBB_of_TMC [ Mon Aug 11, 2008 8:59 am ] |
| Post subject: | |
Thanks again for the good advice. The trans isn't out (or I would replace the seal) and to the best of my knowledge used to run just fine and not leak, so I think I'll just change the fluid and filter, start it up, treat it very gently for awhile and hope for the best without changing anything else, just to keep it simple for now. I have tried the Lucas stuff in another (Ford AOD) trans that had a little shudder and it may have helped and didn't seem to hurt, but I really can't say one way or the other for sure. |
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| Author: | Reed [ Mon Aug 11, 2008 9:47 am ] |
| Post subject: | |
Quote: Several Mopar mags, also recommend replacing the slant six, with a V-8, under all conditions, also.
Yeah, but I'm not that dumb. The accumulator spring was actually already removed when i got the tranny so all I did was a band adjustment and increased the line pressure. No bad side effects yet. I will keep my fingers crossed. No leaks, shifting is fine. 
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