Would like to install gm 4.3l v6 and th700r4 in my cj7.. What are costs? Issues?
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- 1965 CJ-5 Buick V6 Ford T-18 4-Speed Spicer 20/18,Warn Overdrive Dana 30 & 44 w/Powr-Lok posi / both,4.27 gears 33" tires.
I checked to see if i could locate any tag or number on either of the diffs. I found one on just the front diff.. (Tag reads: 5354908 3 54 & 46-13) I don't know what that means. Would you?
And then, I searched through old pictures of when I changed the gear oil and diff covers. I found a few pictures. Could you tell by the pictures what gear ratio the rear is? And if the front matches the tag?
THANKS AGAIN for your help!
If the front diff tag is correct, according to the internet, the front gear ratio is 3.54 (what ever that means.) :0

76.........Good find. And Hopefully there the same at both ends....It is a good Idea to count the teeth if you still have the cover off just to verify.......seen folks do some strange things with those ID bands.
As mentioned that is a more suitable to Highway driving gear ratio.......If some off road was in your future , then you may want to consider a 3.15 gear for your Transfer Case that now has a 2.0 gear in it.......this would be a major improvement but only when the Transfer Case is in the low Range..........Your Freeway gears will still be the same once in High Gear when the Ratio at your Transmission is 1:1 and your rear axle at 3.54.



