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Old 12-08-2012, 02:18 AM   #1
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Best place to support the tranny and t-case?

I need to remove my stock belly pan/skid plate in order to do a mod, Wheres the best place to put the jack to support everything while the belly pan is removed and give me time to place a jack stand under everything? With the skid plate on the tranny oil plan comes after it.

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Old 12-08-2012, 02:37 AM   #2
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I used a block of wood and a floor jack right under the transmission bellhousing until I dropped the skid plate. It worked out no problem. The only other place was the output shaft splines at the back of the transfer case and I wasn't comfortable doing that...

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Old 12-08-2012, 03:02 AM   #3
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Quote:
Originally Posted by Sycboi View Post
I used a block of wood and a floor jack right under the transmission bellhousing until I dropped the skid plate. It worked out no problem. The only other place was the output shaft splines at the back of the transfer case and I wasn't comfortable doing that...
You dont want to put it on the bellhousing, it puts unnecessary stress on the transmission cause of the weight of the tcase that far away from the jack point will act like a lever. You need to put the jack as close to the skid plate as possible.
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Old 12-08-2012, 03:15 AM   #4
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The way my aftermarket exhaust runs it's literally engine oil pan/transmission bellhousing/exhaust/transmission oil pan (a little)/skidplate. I didn't see another option...
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Old 12-08-2012, 05:48 AM   #5
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i ran a ratchet tie down under the transfer case and hooked it to the frame rails.
then i used my transmission jack to remove my stock skid and to install my new one. with the total angle control the trans jack has placement is a breeze i will never regret the 120 dollar harbor freight trans jack.
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Old 12-08-2012, 09:20 AM   #6
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I support the tranny/tcase on a floorjack just in front of the skid.
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Old 12-08-2012, 10:35 AM   #7
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You dont want to put it on the bellhousing, it puts unnecessary stress on the transmission cause of the weight of the tcase that far away from the jack point will act like a lever. You need to put the jack as close to the skid plate as possible.
I have had the trans supported right off the bellhousing on a jackstand with no issues. What exactly am I "levering" besides the grade 8 bolts connecting the trans/TC to the engine?
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Old 12-08-2012, 10:43 AM   #8
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I have had the trans supported right off the bellhousing on a jackstand with no issues. What exactly am I "levering" besides the grade 8 bolts connecting the trans/TC to the engine?
Grade 8 bolts will break

By levering I meant the weight of the tcase that far away from the jack will put unnecessary stress on the transmission and the bolts. It could even possibly make the transmission start leaking.
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Old 12-08-2012, 10:51 AM   #9
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Has that happened to you before? Have you had your trans down? Cause both when I did my clutch and when I swapped out my TC I had no issues at all.... And in a single shear calculation, ONE 7/16 Gr 8 bolts will support over 13,000 lbs. There are 8 bolts if I remember correctly...... I dont think anything is gonna break.
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Old 12-08-2012, 10:54 AM   #10
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Quote:
Originally Posted by DevilDogDoc View Post
Has that happened to you before? Have you had your trans down? Cause both when I did my clutch and when I swapped out my TC I had no issues at all.... And in a single shear calculation, ONE 7/16 Gr 8 bolts will support over 13,000 lbs. There are 8 bolts if I remember correctly...... I dont think anything is gonna break.
Do what you want, but there is a weak link
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Old 12-08-2012, 10:59 AM   #11
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Do what you want, but there is a weak link
Where?
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Old 12-08-2012, 11:07 AM   #12
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Between the tcase and the tranny, and if you have a manual there's seals you have to think about cause its made in several different pieces
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Old 12-08-2012, 11:13 AM   #13
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I know there is a seal in between the trans and TC as I have replaced it before but again there are 6 bolts connecting the rear of the trans to the front of the TC, also the input/output splines mesh a good 4 inches so I dont think there will be any issues there either....not looking to argue though..
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Old 12-08-2012, 01:09 PM   #14
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So can I put my jack right under the rear output shaft of the t-case until I get a Jack stand under everything?
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Old 12-08-2012, 01:13 PM   #15
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Quote:
Originally Posted by CMA_Rider View Post
Grade 8 bolts will break

By levering I meant the weight of the tcase that far away from the jack will put unnecessary stress on the transmission and the bolts. It could even possibly make the transmission start leaking.
Have you ever dropped your skid? Do it and you will see how easy it is to support everything. It's not as heavy as you might think.
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Old 12-08-2012, 02:36 PM   #16
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So can I put my jack right under the rear output shaft of the t-case until I get a Jack stand under everything?
I suggest just in front of the skid..... 4x4 on a jackstand or floor jack.
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Old 12-08-2012, 11:05 PM   #17
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I suggest just in front of the skid..... 4x4 on a jackstand or floor jack.
That isn't gonna damage the tranny oil pan? I have an auto not a manual..
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Old 12-08-2012, 11:16 PM   #18
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Have you ever dropped your skid? Do it and you will see how easy it is to support everything. It's not as heavy as you might think.
Yes Ive dropped it by myself several times, and a couple of times by myself with only one jack, no jack stands, now thats a balancing act.

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