Author
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Topic: Trans. filter
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cobravenom71 Gearhead Posts: 808 From: Kissimee, Fl USA Registered: Aug 2002
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posted 12-20-2002 06:33 PM
I did a transmission filter and fluid change recently on my 73'(302 w/ C-4) and I ran into a perplexing situation. The new filter and gasket looked just like any other C-4 I've ever worked on. That is, the filter was actually an aluminum frame with a screen, and does not acxtually have any filter media in it. It is held on the the underside of the valve-body by 7 bolts. Now, when I opened up the trans, the filter that was installed previously looked completely different. There was a flat plate that is the exact shape of the normal screen bolted in place where the regular screen goes. There is a dime-sized hole in the plate, and an open-element felt-media filter is held on the underside of this plate with two sheet metal screws. This appears to be an attempt to use a better style of filtering process, but I've never seen it done this way. When I took the plate off, it was embossed with a company logo that says 'GRIT EATER'. I'm assuming this was some kind of aftermarket retro-fit for the C-4, but I've never seen anything like it. After putting the correct Ford-style pieces in the trans, it seems to work a little better, but I might be imagining it. It certainly works at least as well as it did before the change. Is anybody familiar with this, or have they ever heard of this? Thanks so much. ------------------
[This message has been edited by cobravenom71 (edited 12-20-2002).]
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Moneymaker Administrator Posts: 19964 From: Lyons, IL, USA Registered: May 99
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posted 12-20-2002 07:41 PM
It's a mickey mouse set up used by high volume trans shops CV. It's cheap and helps them with their warrantee claims. You did good by replacing it with a traditional unit. ------------------ Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver MCA member# 53321 NHRA and IHRA SS/LA National Record Holder '00, '01, & '02 Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 Professional Manwhore The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked." Quote #2: "Make sure brain is in gear before engaging mouth!" Quote #3: "If you can't run with the big dogs, stay on the porch!" www.moneymakerracing.com [This message has been edited by Moneymaker (edited 12-20-2002).]
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cobravenom71 Gearhead Posts: 808 From: Kissimee, Fl USA Registered: Aug 2002
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posted 12-20-2002 08:46 PM
That makes me feel better, as I drive this car about 100 miles a day, 5 days a week. Now , I have another question: This trans originally called for Type-F, which is what I installed.( I also did a complete flush-16 quarts). Almost every tech at any trans shop I have ever spoke to says that they always use dex in all thier rebuilds and full-flushes, regardless of the original specified fluid. Supposedly, the dex allows the trans to run cooler. Sounds fishy to me, so I just filled it with the original Type-F stuff, and so far no problems. It's been about 600 miles or so since the service, and all is well so far.Any opinions? ------------------
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Moneymaker Administrator Posts: 19964 From: Lyons, IL, USA Registered: May 99
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posted 12-20-2002 08:53 PM
NO F*CKING WAY! Whatever trans "techs" you are getting advice from, you should lose their numbers. Type "F" has no friction modifiers and is formulated for firm quick shifts. This is to inhibit heat and wear. Dextron promotes slippage and heat to facilitate smoother sloppy "old man" shifts. Always use type "F" in all early FoMoCo automatic transmissions and many late models where you want to improve shift quality. I always use type "F" in AOD's to improve the shifts. Turns any mushy shifting 5.0 automatic Mustang into a tire chirper without a shift kit. ------------------ Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver MCA member# 53321 NHRA and IHRA SS/LA National Record Holder '00, '01, & '02 Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 Professional Manwhore The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked." Quote #2: "Make sure brain is in gear before engaging mouth!" Quote #3: "If you can't run with the big dogs, stay on the porch!" www.moneymakerracing.com
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cobravenom71 Gearhead Posts: 808 From: Kissimee, Fl USA Registered: Aug 2002
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posted 12-20-2002 09:01 PM
Most of them do say that the Type-F does promote harder shifts, and thats why Ford stopped using it.Mostly for the smooth 'driveability' issues for the normal driver, I think. But there are a lot of shops out there that just pur dex-merc in everything(except the mopar stuff). Oh well, thanx for the advice!
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SteveLaRiviere Administrator Posts: 34763 From: Saco, Maine Registered: May 99
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posted 12-20-2002 09:07 PM
It's cheaper buying in bulk. That's when their heads are at. A 'smooth' shift is a clutch slipping, heat building shift. ------------------ '70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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Moneymaker Administrator Posts: 19964 From: Lyons, IL, USA Registered: May 99
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posted 12-20-2002 10:12 PM
Correct Steve. Dexron is much cheaper in bulk, like 20%. All of the trans shops I know of (except JPT) don;t even stock type "F" in bulk anymore. They only use it for "special" projects or customers. ------------------ Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver MCA member# 53321 NHRA and IHRA SS/LA National Record Holder '00, '01, & '02 Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 Professional Manwhore The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked." Quote #2: "Make sure brain is in gear before engaging mouth!" Quote #3: "If you can't run with the big dogs, stay on the porch!" www.moneymakerracing.com
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