Posts: 4
When I first purchased my Coronet, the shop that I used to flush and replace all fluids put Dextron 3 into the gearbox saying that was the required lubricant after research. I am planning on taking the car on a fairly long trip soon and am uptight that it doesn't have 90w gear oil. Should I be? Thank you!
Posts: 1,239
Yes you should be uptight. It should have GL4 gear oil in it. Plan on ordering it online I wasn’t never able to find it locally.
Clean as a whistle
Posts: 625
The shop was right. Automatic tranny fluid is correct – see the pic below from the 65 factory service manual.
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67 Coronet 500 - 9.610 @ 139.20 mph
Posts: 4
Posts: 6,648
I always believed that was for racing or very cold weather. Atf
The Idaho AndyI love the smell of race fuel in the morning
Posts: 625
67r/t4speeder Wrote: I always believed that was for racing or very cold weather. Atf
I always found it to be a confusing topic. For 69, they show either ATF or multipurpose gear oil - see below. I talked to Jamie Passon and he said to use ATF.
11908
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67 Coronet 500 - 9.610 @ 139.20 mph
Posts: 6,648
Who has tried atf? , curious how it reacted myself.
The Idaho AndyI love the smell of race fuel in the morning
Posts: 1,239
67r/t4speeder Wrote: Who has tried atf? , curious how it reacted myself.
I tried it once, it kept trying to shift by itself. That just took all the fun out of it for me. HAHA!!
Clean as a whistle
Posts: 12
ATF in an 833 4-speed will eat the countershaft. Always go with gear oil.
Posts: 4
I worked for Mopar dealers from '68-'72... Type A/B/Dexron was the factory fill.
