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Jeep Wrangler YJ
YJ General Discussion
93 with 4.3 and 4L60E
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<blockquote data-quote="Walt Jaquith" data-source="post: 426399" data-attributes="member: 18654"><p>If you google '4L60e controller' you'll find standalone, aftermarket computers for your transmission that don't need the engine's fuel injection system. They're not cheap, but I don't think the GM computer's transmission controls will work without input from the EFI management system. To get away from the electronics altogether, an early 700R4 (without the torque converter lockup function) would be the next option.</p><p></p><p>What gears and tires do you have on the Jeep? I did the swap with a 4.3 and 700R4. My yj was an automatic with 3:55 gears and 31 inch tires, and the overdrive in the GM tranny is not really in the best range. I'm planning on switching to 3:73 gears, which should be much better. Your gears are probably lower already with the manual transmission.</p></blockquote><p></p>
[QUOTE="Walt Jaquith, post: 426399, member: 18654"] If you google '4L60e controller' you'll find standalone, aftermarket computers for your transmission that don't need the engine's fuel injection system. They're not cheap, but I don't think the GM computer's transmission controls will work without input from the EFI management system. To get away from the electronics altogether, an early 700R4 (without the torque converter lockup function) would be the next option. What gears and tires do you have on the Jeep? I did the swap with a 4.3 and 700R4. My yj was an automatic with 3:55 gears and 31 inch tires, and the overdrive in the GM tranny is not really in the best range. I'm planning on switching to 3:73 gears, which should be much better. Your gears are probably lower already with the manual transmission. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
93 with 4.3 and 4L60E
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