4r70w mechanical diode Nov 4, 2002 · The 4R70W also has a 2" wide OD band rather than the 1. Will replace 1998 up or update your 1992-1998 AODE to the later 4R70W mechanical dio - NTP-K47806L NOTE: OPT uses javascript to enhance and secure your online experience. I am thinking this should rotate counter clockwise with a clicking noise, but this one rotates about 1/2" both ways and then stops. The 4R70W uses a planetary support/sprag ring as the case "center support . This kit allows you to update your Ford AOD-E / 4R70W transmission to the new Raybestos Mechanical Diode® (used in 1998 and later AOD-E transmissions). Your Cost $ 89. 99 . Mechanical diode (intermediate 1 way clutch): '98 & up MAJOR EXPENSE TO BUY SEPARATELY, but "MUST HAVE" for HP (also has the 2" wide od band stock). Technical handbook for AODE, 4R70W, 4R70E, and 4R75E transmissions. Skip to Content There have been other improvements added to the 4R70W since 1993; the most prevalent was the introduction of the "Mechanical Diode" beginning with the 1998 models. Qty: Email me when Back-In-Stock. The Mechanical Diode eliminates durability concerns for the intermediate (second gear) one-way clutch. In 1998, due to durability concerns, the intermediate one-way roller clutch was replaced with a mechanical diode providing extra holding capacity and longer service 4R70W Transmission mechanical diode Competitors Price $99. The mechanical diode, which isn’t much more than a redesigned Apr 26, 2005 · Shift accumulators (1-2 & 2-3): '98 & up. Newer transmissions are commonly called 4R70E, 4R75W or 4R75E to differentiate them from previous “non E” models. Then top it off with a higher stall rpm converter, external tranny cooler, and tranny temp. Includes descriptions, electrical components, gear ratios, and troubleshooting. They increased the number of ratchet teeth in the diode which should increase holding strength. 04. Mechanical Diode® Kit for AOD-E / 4R70W Transmission. Oct 27, 2023 · Which Vehicles Use Ford 4R70W Transmissions? The 4R70W transmission shares similarities with the Ford AODE but boasts several vital enhancements. 76652C - 4r70w mechanical diode 98-up. '02 4R70W, PST This is a new mechanical diode for the intermediate clutch in Ford 4R70W automatic transmissions manufactured from 1998 and up. Replace your roller clutch with the much stronger mechanical diode. Features Mechanical Diode® Kit for AOD-E / 4R70W Transmission. Extreme Duty mechanical diode conversion kit for 1992 - 1998 AODE and 4R70W transmissions. Jul 16, 2009 · #1. Comes on the A O Dominator. gauge. OEM Part Number: F8AZ-7A089-AA Industry Part Number: D76652C Nov 25, 2016 · Another difference between the AOD and AOD-E/4R70W is this mechanical diode, which replaced the AOD’s conventional roller clutch. Red '96 Cougar XR-7 240k mi. Easy to add the 1-2 to older AOD/E & 4R70W, just drop the pan. Oct 22, 2006 · The mechanical diode is a heavier duty part. Mechanical Diode Kit With Reverse Clutch Drum AODE 4R70E 4R70W 4R75E 4R75W. Compare Products ; 866-223-5656. Product Code: 270-000027882. Notably, it features lower first and second gears and employs a mechanical diode instead of a roller clutch. Apparently it is a weak point on the earlier transmissions, but still the 4r70w is a REALLY reliable transmission, especially by Ford standards. To add the 2-3, you also need to drop the valve body. Is this the failure mode for this part? There May 12, 2011 · Rebuild your existing tranny with performance clutches/steels, 4R70W gearset, mechanical diode one-way intermediate clutch, and a performance valve body. 4R70W/4R75E Intermediate Mechanical Diode Sprag In 2007, Ford introduced a new design mechanical diode. This is a weak point on early pre 1999 A0DE / 4R70W transmissions. The store will not work correctly when cookies are disabled. 5" and will fit the AOD. Apr 3, 2006 · No can do - there is no decent shape 4r70w in Europe and shipping from US will cost twice as much as tranny itself I just want to do 3 things since i will take the tranny out of the car - Mechanical diode, Jmod and 96+ oilpan, plus of course replacing stuff that died, probably forward clutch + tq regeneration 4R70W (1995) is a modified version of AODE, which was used until 2006. I am rebuilding a 4R70W transmission for 2000 V8 AWD and the mechanical diode does not rotate in either direction. Also fits 1991 - 1993 AOD transmissions. At the time of printing this manual, there have been no reports of premature failure. Mar 1, 2021 · The mechanical diode was a 1997 calendar year part, seen for 98 MY transmissions and the occasional late 97 MY trans. Is part of the reverse drum assembly. I guess, if you do a lot of towing or are making extra power, it is really worth it to have the 98+ tranny. Feb 8, 2003 · The top of the stack is the "mechanical diode" an upgrade that is a critical upgrade. (excuse my ignorance on this one, but, like I said I don't know a heck of alot about transmission internals) There was some sort of 'mechanical diode' we used from the 4R70W in my AOD and it was supposidly better than the AOD unit. zfa oiqu ruiu fxkamsh zky dsyafgo jrujhs bbwzk lejw gqdtmo skm prdpxl xoni ewi urlz