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Author Topic: Drive shaft flange  (Read 544 times)

heavysquad

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Drive shaft flange
« on: May 08, 2020, 03:19:05 PM »

Is the differential side of the front drive shaft the same size as the transfer case side? I have 2 partial drive shafts and want to build 1 good one. I realize it wouldnít work if I had one from an 88.5 and one from an earlier samurai.
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mkyhmltn

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Re: Drive shaft flange
« Reply #1 on: May 08, 2020, 06:14:43 PM »

they are the same

heavysquad

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Re: Drive shaft flange
« Reply #2 on: May 10, 2020, 11:29:14 AM »

Cool thank you
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BamaRob

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Re: Drive shaft flange
« Reply #3 on: May 11, 2020, 05:28:52 AM »

Just an FYI... I had a complete set of spare driveshafts on a shelf.  But, unfortunately, they were large bolt pattern whereas my 88.5 has the small pattern flanges (88.5 was the transition from small to large... some 88.5 have the small, some have the large).  But, I knew I could either drill for the new pattern on my t-case and diff flanges and be able to run either, or swap out the ends of the shafts with new u-joints if I needed.  I have ZOR's Deluxe Escort YJ kit SPUA with OME 2.5" YJ springs and 31x10.50x15 tires.  I was running a 1" spacer on the front shaft and it was still a little too short for my liking; a lot of spline showing and a lot of lateral slop in the shaft.  I'll eventually get some custom shafts from Tom Woods.  But, for now, I was looking for a cheap solution with what I had on hand.  I noticed that the slip joint on a rear shaft is right at 2" longer than the slip joint on a front shaft.  Since I never run in 4wd at highway speeds, I'm not concerned with the front shaft being perfectly balanced.  So, I swapped the ends and am using the rear slip joint on my front shaft.  Getting rid of the 1" spacer and changing to the 2" longer slip joint netted 1" of additional length.  I was afraid it was going to be too long, but I still have about 1.5" of compression available.  There's very little spline showing and it got rid of the lateral slop.  A day or two later, a buddy had a u-joint failure and destroyed the main shaft in his rear.  I was able to provide the main shaft that I had robbed the slip joint from to get him back on the road.  Luckily, it seems to be balanced pretty well using his slip joint with my old main shaft.

So, if you're needing a couple extra inches in your front shaft, you might try combining a rear slip joint with your front main shaft.  Worked for me!
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heavysquad

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Re: Drive shaft flange
« Reply #4 on: May 12, 2020, 04:43:31 AM »

Thatís an awesome idea! 2 years ago I went spoa for a mud run and needed another spacer for the front. That would have been good to know. Although Iíve given away all my rear shafts to my buddy who canít stop popping the clutch to spin the tires.
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BamaRob

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Re: Drive shaft flange
« Reply #5 on: May 12, 2020, 05:20:19 AM »

Speaking of popping the clutch to spin the tires... I, occasionally, like to do that as well. :-)  And, I'm getting some axle wrap when I do.  More often than not, it isn't spinning tires on the street, though...  It's popping the clutch for that extra umpf when in 4Low on a particularly tough rock ledge.  So, I'm needing an antiwrap setup, at least on the rear.

Thatís an awesome idea! 2 years ago I went spoa for a mud run and needed another spacer for the front. That would have been good to know. Although Iíve given away all my rear shafts to my buddy who canít stop popping the clutch to spin the tires.
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