halnelmar Posted November 20, 2018 Share Posted November 20, 2018 does anyone know the axle ratio for this truck? cannot find the info for the v6 anywhere Link to comment Share on other sites More sharing options...
Green Mesa XJ Posted November 20, 2018 Share Posted November 20, 2018 1984-85 v6 5 speed 4x4 had 3.73. Not sure if it continued in to 1986 when Chrysler started to become a factor. I think it may have been 3.55 in 1986 for the v6, and 4.10 for the 4cylSent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
Pete M Posted November 20, 2018 Share Posted November 20, 2018 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. Link to comment Share on other sites More sharing options...
dasbulliwagen Posted November 20, 2018 Share Posted November 20, 2018 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. Link to comment Share on other sites More sharing options...
Eagle Posted November 20, 2018 Share Posted November 20, 2018 I have a hulk of an '86 XJ V6 auto. It has 3.73 gears. Link to comment Share on other sites More sharing options...
DirtyComanche Posted November 20, 2018 Share Posted November 20, 2018 I'd look for the tag(s), or spin it as Pete suggested. Link to comment Share on other sites More sharing options...
coheed Posted November 23, 2018 Share Posted November 23, 2018 My 86 2.8 904 Np228 has 4.10's. Link to comment Share on other sites More sharing options...
yxmj Posted November 23, 2018 Share Posted November 23, 2018 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) Link to comment Share on other sites More sharing options...
HOrnbrod Posted November 23, 2018 Share Posted November 23, 2018 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) 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. Link to comment Share on other sites More sharing options...
omega_rugal Posted November 24, 2018 Share Posted November 24, 2018 is it a dana 35? what if you have a amc 20 Link to comment Share on other sites More sharing options...
Pete M Posted November 24, 2018 Share Posted November 24, 2018 if you are lucky to have an amc-20, they should be 4.10s Link to comment Share on other sites More sharing options...
zomeizter Posted November 24, 2018 Share Posted November 24, 2018 1 hour ago, Pete M said: if you are lucky to have an amc-20, they should be 4.10s Define lucky... Link to comment Share on other sites More sharing options...
Pete M Posted November 25, 2018 Share Posted November 25, 2018 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. turned out to be a metric ton 86 with the AMC-20. Link to comment Share on other sites More sharing options...
amsuco Posted November 27, 2018 Share Posted November 27, 2018 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. 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. Link to comment Share on other sites More sharing options...
HOrnbrod Posted November 27, 2018 Share Posted November 27, 2018 Hey Pete - you suck. There - someone generated it. happy now? 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... Link to comment Share on other sites More sharing options...
Pete M Posted November 27, 2018 Share Posted November 27, 2018 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. I don't deny it's happened to me now and again. Link to comment Share on other sites More sharing options...
zomeizter Posted November 27, 2018 Share Posted November 27, 2018 19 hours ago, HOrnbrod said: Hey Pete - you suck. There - someone generated it. happy now? 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. I don't deny it's happened to me now and again. 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... Link to comment Share on other sites More sharing options...
Pete M Posted November 27, 2018 Share Posted November 27, 2018 the CJ version had 2-piece axles that liked to fail at the connections and that gives them a bad wrap. MJs have one-piece shafts. Link to comment Share on other sites More sharing options...
zomeizter Posted November 27, 2018 Share Posted November 27, 2018 So it's not a POS? Link to comment Share on other sites More sharing options...
HOrnbrod Posted November 27, 2018 Share Posted November 27, 2018 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. Link to comment Share on other sites More sharing options...
Pete M Posted November 27, 2018 Share Posted November 27, 2018 4 minutes ago, zomeizter said: So it's not a POS? nope. on par with the dana 44, 8.8, and late model 8.25 I mean, yes. it's a total waste of money and you should give it to Don for free. Link to comment Share on other sites More sharing options...
zomeizter Posted November 27, 2018 Share Posted November 27, 2018 1 minute ago, HOrnbrod said: Let me know when it's available - I'm pretty close to you. Will do. Link to comment Share on other sites More sharing options...
zomeizter Posted November 27, 2018 Share Posted November 27, 2018 2 minutes ago, Pete M said: nope. on par with the dana 44, 8.8, and late model 8.25 I mean, yes. it's a total waste of money and you should give it to Don for free. Hahaha! Link to comment Share on other sites More sharing options...
specauto Posted November 30, 2018 Share Posted November 30, 2018 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 Link to comment Share on other sites More sharing options...
HOrnbrod Posted November 30, 2018 Share Posted November 30, 2018 On 11/27/2018 at 5:49 PM, zomeizter said: Hahaha! Sounds like a great idea to me. Anyone ever done disk brakes on an AMC-20? Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now