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Jeep Wrangler YJ
YJ General Discussion
AX-15 Transmission Fluid Report
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<blockquote data-quote="deadpool1" data-source="post: 440794" data-attributes="member: 21229"><p>I run GL4, in mine and shifts like new. GL4 for tractors sold at tractor supply house and omg even wal-mart*, in the huge blue jug. GL4 , 2 gallons</p><p>do not use GL5 axle oil.</p><p>most stores do not sell GL4 because 99% of cars have no manual boxes, now. yours does.</p><p>yes GL3 was upgraded to GL4, and GL3 is not sold now, ever. (unless relic NOS jugs , hah) , and MT1 lube is only for 1959 bus crash boxes ok? (zero synchro)</p><p>the rear says <strong>API GL4</strong> , and is NO LIE it is.</p><p></p><p><a href="https://www.walmart.com/ip/Super-Tech-Heavy-Duty-Tractor-Hydraulic-and-Transmission-Fluid-2-Gallons/16879814?athbdg=L1600&from=/search" target="_blank">tractor hydraulic & transmission oil. see rear panel for vast tractors in fact.</a></p><p></p><p>If the synco rings are worn out they will grind or balk, I've replaced many in all my cars from 1964 to now, some rings even split, 2nd gear loves to fail in city driving.</p><p>not told do all forward gears grind or just 1. does it grind shifting easy too.? (yes downshifting is harder)</p><p>the rings inside cones wear out, and go from grooves, to failed glass like flat surfaces.(EOL) the synrcos are designed for only 1 type of lube</p><p></p><p>My JK has synchos that only work with SYnthetic lube and look alien to me , in my hand. them. (composite syncros, not brass!)</p><p>USE ONLY GL4 and win.</p><p>The rings do not last for ever, (brass) (<captain obvious sure)</p><p>Good luck finding the fix.</p><p></p><p>the copper gaskets on drain plugs are sold in any size you want, shopping online. MM I.D. matched. the plugs will be hard to match . but diameter is easy to measure in mm, but the pitch is very hard to read on such short distance there.</p><p>do not pull the side plugs marked <strong>do not remove</strong>. or over-tighten any.</p><p></p><p></p><p>do not use GL4 synthetic oil some are so<strong> slippery </strong>the syncro rings are now hopeless to the max. use Dino GL4 (API grade only)</p><p>use a viscosity for you climate matched. or as jeep told you.</p></blockquote><p></p>
[QUOTE="deadpool1, post: 440794, member: 21229"] I run GL4, in mine and shifts like new. GL4 for tractors sold at tractor supply house and omg even wal-mart*, in the huge blue jug. GL4 , 2 gallons do not use GL5 axle oil. most stores do not sell GL4 because 99% of cars have no manual boxes, now. yours does. yes GL3 was upgraded to GL4, and GL3 is not sold now, ever. (unless relic NOS jugs , hah) , and MT1 lube is only for 1959 bus crash boxes ok? (zero synchro) the rear says [B]API GL4[/B] , and is NO LIE it is. [URL='https://www.walmart.com/ip/Super-Tech-Heavy-Duty-Tractor-Hydraulic-and-Transmission-Fluid-2-Gallons/16879814?athbdg=L1600&from=/search']tractor hydraulic & transmission oil. see rear panel for vast tractors in fact.[/URL] If the synco rings are worn out they will grind or balk, I've replaced many in all my cars from 1964 to now, some rings even split, 2nd gear loves to fail in city driving. not told do all forward gears grind or just 1. does it grind shifting easy too.? (yes downshifting is harder) the rings inside cones wear out, and go from grooves, to failed glass like flat surfaces.(EOL) the synrcos are designed for only 1 type of lube My JK has synchos that only work with SYnthetic lube and look alien to me , in my hand. them. (composite syncros, not brass!) USE ONLY GL4 and win. The rings do not last for ever, (brass) (<captain obvious sure) Good luck finding the fix. the copper gaskets on drain plugs are sold in any size you want, shopping online. MM I.D. matched. the plugs will be hard to match . but diameter is easy to measure in mm, but the pitch is very hard to read on such short distance there. do not pull the side plugs marked [B]do not remove[/B]. or over-tighten any. do not use GL4 synthetic oil some are so[B] slippery [/B]the syncro rings are now hopeless to the max. use Dino GL4 (API grade only) use a viscosity for you climate matched. or as jeep told you. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
AX-15 Transmission Fluid Report
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