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Old 05-16-2018, 09:32 AM
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Default swapped diff in less than one hour

My car is the fastest, now i have swapped out the rear end ( differential ) in less than ONE HOUR, making this the the fastest diff change. from the time i drove into the bay ,put my car on the lift, there were three of us,
Once up on the lift , one guy removed the exhaust, my exhaust is 3" and comes apart in three pieces,we did not remove the muffler or tail pipes, the center bearing on drive shaft, and the two plates one front the other rear 1/2 of the driveshaft driveshaft. I removed the right rear tire ,unbolted the axle, and removed part of the suspension,the three control arms from the right rear , but not from the car side the three control arms from the wheel hub, pulled the hub over until i could push the axle out of the hub, in the mean time guy three was removing the diff ,the flex joint and rear 1/2 of drive shaft, now the right side of the car (suspension) still bolted up tight we pried loose the left axle part way , now we dropped the diff ,at the same time pulled the axle out of the diff( remember the left axle is still bolted into the hub,and no suspension on the left side is removed). the spring and shock and sway bar are still bolted in. we all three dropped the diff , almost like one motion put the 3.46 with wavetrac, back up in place of the ole 3.07 the left axle went right in, so did the right axle, as one guy put the oil in ,i started putting back the control arms, guy #3 went to the drive shaft put that in along with new flex joints, center bearing and brackets. with everything reinstalled, We torqued everything.
I replaced my tcu, connected the batt cable fired up the car drove out of the shop in a total of 56 minutes we had the rear swapped out , wish i had pictures but that would have needed another guy,, and i forgot to do it.

hope my two finger typing is understandable jim
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Old 05-16-2018, 04:45 PM
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Default Re: swapped diff in less than one hour

Anybody up for a trip to Pa. to do mine?
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Old 05-16-2018, 06:44 PM
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Default Re: swapped diff in less than one hour

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Originally Posted by JEFASOLD View Post
Anybody up for a trip to Pa. to do mine?
I just replaced the right half shaft on my '02 Concorde by myself, can't be much harder than that.
I'll be sore for 4 or five days now, and still have the left side one to do
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Old 05-16-2018, 08:20 PM
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Default Re: swapped diff in less than one hour

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Anybody up for a trip to Pa. to do mine?
give me a call I can walk you through it
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Old 05-16-2018, 08:46 PM
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Default Re: swapped diff in less than one hour

Will your speedo be correct?
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Old 05-16-2018, 09:57 PM
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Default Re: swapped diff in less than one hour

Not bad..got a good pit crew..plus you've done this a few times now haven't you? Would only take me 8 hrs or so , probably the or so, time..lol .
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Old 05-17-2018, 08:55 AM
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Default Re: swapped diff in less than one hour

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Will your speedo be correct?
yes because you have to have the T C M ,,transmission control module reflashed for the ratio you are useing , but a std shift crossfire does not use a tcm so I don't know if the speedo would be correct or not ,, jim
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Old 05-17-2018, 08:58 AM
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Default Re: swapped diff in less than one hour

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Not bad..got a good pit crew..plus you've done this a few times now haven't you? Would only take me 8 hrs or so , probably the or so, time..lol .
your right, i think this is about the 6 or 7 time i have done this and each time i find a shorter/ better way to do it. jim
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Old 05-17-2018, 01:35 PM
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Default Re: swapped diff in less than one hour

My problem is that I don't have much use of my left hand and arm. It takes me much time to figure out how I can do it, then about 4 times as long as normal to actually do it.
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Old 05-17-2018, 02:48 PM
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Default Re: swapped diff in less than one hour

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Originally Posted by JEFASOLD View Post
My problem is that I don't have much use of my left hand and arm. It takes me much time to figure out how I can do it, then about 4 times as long as normal to actually do it.
just let me know if i can help,, and if i am near i'll stop by and maybe between the two of us + one more guy we can replace yours. but i think you found the problem and it may not be the diff. hope you got it.. jim
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