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1986 v6 4x4


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it could be anything.  they hadn't yet standardized the ratios for each drivetrain combo.  easiest way is to jack up one rear tire, put it in neutral, and spin the tire around exactly twice while counting the number of times the driveshaft spins.  3 and a half is 3.55, a tic over 4 is 4.10, etc.  :L: 

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Why Guess.....drop the cover....read the stamped numbers....replace the cover and top up with new diff lube....that way you are 100% positive of what the ratio is ....and you gave the truck some new lube ( that was probably needed anyway):L:

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20 minutes ago, yxmj said:

Why Guess.....drop the cover....read the stamped numbers....replace the cover and top up with new diff lube....that way you are 100% positive of what the ratio is ....and you gave the truck some new lube ( that was probably needed anyway):L:

 

Exactly.  And while you're in there check the condition of the R & P, check to see if it's Posi or not, etc. Good to know info. 

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On November 24, 2018 at 8:47 PM, Pete M said:

well, 20 years ago some random guy stopped by the house one day while I was puttering with my MJ and asked if I wanted to buy his for a dirt cheap.  :D  turned out to be a metric ton 86 with the AMC-20. 

 

I can't believe that this didn't generate a "you suck!" comment.  I mean...I know we're nice guys and all, but still.

 

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Hey Pete - you suck. There - someone generated it. happy now?   :applause:

 

I searched HARD for years and years for an MJ AMC-20 rear so I could junk my POS c-clip D35 - couldn't find. I had to settle for an MJ D44 finally, but I still want an AMC-20 just because of it's uniqueness. And I'm still looking...

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26 minutes ago, amsuco said:

 

I can't believe that this didn't generate a "you suck!" comment.  I mean...I know we're nice guys and all, but still.

 

 

I was asked for the definition of lucky. :D   I don't deny it's happened to me now and again.  :comanche:

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19 hours ago, HOrnbrod said:

Hey Pete - you suck. There - someone generated it. happy now?   :applause:

 

I searched HARD for years and years for an MJ AMC-20 rear so I could junk my POS c-clip D35 - couldn't find. I had to settle for an MJ D44 finally, but I still want an AMC-20 just because of it's uniqueness. And I'm still looking...

 

19 hours ago, Pete M said:

 

I was asked for the definition of lucky. :D   I don't deny it's happened to me now and again.  :comanche:

Ha! I thought the AMC 20 was a POS axle. Well, according to the internet...I will replace my 4.10 geared AMC 20 for an 8.8, so I think it will be up for grabs...

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24 minutes ago, zomeizter said:

Ha! I thought the AMC 20 was a POS axle. Well, according to the internet...I will replace my 4.10 geared AMC 20 for an 8.8, so I think it will be up for grabs...

 

Let me know when it's available - I'm pretty close to you. 

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On 11/20/2018 at 4:54 PM, dasbulliwagen said:

My 86 V6 4x4 with a 5 speed had 4:10's. Those axles and trans got put into my 87. I also have an 86 XJ Waggy V6 4x4 NP229 auto, but I don't know what gears are in it yet.

 

M5 (5th MJ) I picked up (86) has 2.8 six with auto and 4.10 gears

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