Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: grayspeed on December 28, 2010, 10:19:11 PM

Title: Have I cocked up?
Post by: grayspeed on December 28, 2010, 10:19:11 PM

Have I made a cock-up? I bought a diesel XJ for the LSD rear diff for my YJ, ideal I thought as my rear brakes are worn out, I'll swap the complete axle over, just been looking and XJs are spring over axle and YJs under. Do I fit the axle and XJ springs or would it be better to just swap the diff? The front is 4.5" lifted so spring over would match, just don't want to suffer with any more axle wrap or tramping than I've already got.

Ideas please.....

Title: Re: Have I cocked up?
Post by: Mike Pavelin on December 29, 2010, 07:11:48 AM

What diff ratios is youy YJ running? the XJ axle will be 3.73.

Title: Re: Have I cocked up?
Post by: grayspeed on December 29, 2010, 03:39:37 PM

Standard YJ?

3.07 is what google says, so will 3.73 be any good, I'm running 31's

Title: Re: Have I cocked up?
Post by: MOCAJ on December 29, 2010, 07:50:48 PM

needs to be same ratio front and back or else your ******

Title: Re: Have I cocked up?
Post by: isle of man on December 29, 2010, 07:53:47 PM

Some of the yank mud pluggers have different ration axles to spin the front!!!

Title: Re: Have I cocked up?
Post by: Bubba on December 29, 2010, 07:55:38 PM

this is true but not ideal for the road

Title: Re: Have I cocked up?
Post by: grayspeed on December 29, 2010, 08:03:56 PM

I can change both diffs as I have a leaky front inner seal now too! I thought rovers were bad for oil leaks! :banghead:

Title: Re: Have I cocked up?
Post by: Green Jeep on January 04, 2011, 08:25:20 PM

your YJ is 3.55