Offroad Trailblazers and Envoys

How much to shorten driveshaft with SS rear

G80, GU6, GT4, GT5, WTF? This section is for gearing and driveline stuff.

by Chango » Wed Feb 26, 2014 4:54 pm

I have searched and all I can come up with is on Hardtrailz build. 1.25" on his...That being said, he has more lift than I will have.
I am doing Mark's 2.5" lift, with 285/75/16's. Would that measurement be in the ballpark for me? Whats the best way to measure how much I need to shorten?
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by HARDTRAILZ » Fri Feb 28, 2014 10:28 am

I had 33s when I did it. Not as much lift either. inch to 1.25 is prolly bout right, but I did have extended control arms. I could just barely get it all together before shortening the shaft. I know Hotness texted me he can not even put his shaft in his rear :facepalm: without getting his shaft shortened :coffee2: since he swapped in a SS rearend recently.
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by Regulator1175 » Fri Feb 28, 2014 12:06 pm

I didnt have any issues with my shaft. It fit just fine. :-P

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by HARDTRAILZ » Fri Feb 28, 2014 12:27 pm

You went significantly further to the rear with your extention...


Original question... I paid 75 or 95 I think. Under 100 for shortened and balanced.

Ujoint is $30ish I think
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by Chango » Fri Feb 28, 2014 1:52 pm

Thanks guys, should be picking up my rear this weekend...then I'll see how my shaft fits in my new rear.
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by The Roadie » Fri Feb 28, 2014 6:17 pm

Chango wrote:Thanks guys, should be picking up my rear this weekend...then I'll see how my shaft fits in my new rear.
Do you read these things to yourself before posting them? :poke: :coffee2: :lurk: :zombie:
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by Chango » Fri Feb 28, 2014 6:27 pm

Haha yes...it was in response to Kyles remark about Hotness's rear.
That sounds bad too doesn't it...
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by Grimor » Fri Jul 18, 2014 11:01 pm

Is shortening the drive shaft typically required when swapping to a SS rear?
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by Chango » Fri Jul 18, 2014 11:27 pm

From what I've read yes, somewhere between 1.25" and 1.5". Although Regulator said his fit...
I'm out of town for a few days, hopefully Sunday I'll be able to install mine and I'll let ya know if mine fits or not.
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by ErikSS » Sat Jul 19, 2014 9:18 am

Regulator moved his axle way back, and he runs skyjacker springs giving him maximum lift. Not to mention, that pervert was probably just bragging about getting his shaft into his rear. Lol
I had to shorten my driveshaft when I changed my transmission and transfercase.
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by hotness » Tue Jul 22, 2014 6:46 pm

I paid $90 for shorten and balance. Plus u joint. Best way to know how short to go is install the diff and measure. I believe I took off 1.5" and it fits great.
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by Chango » Tue Jul 22, 2014 8:34 pm

hotness wrote:I paid $90 for shorten and balance. Plus u joint. Best way to know how short to go is install the diff and measure. I believe I took off 1.5" and it fits great.


I guess what I was trying to ask is where to measure from. Center to center, end to end...bla bla

1.5" seems to be the ticket though, I'll go with that.

I've talked to two different places around here. Both were the same at $110 plus u-joints.
Fleet Pride told me to leave my stock u-joints in rather than putting in cheap Chinese junk. Told me theirs are better and the same price. We'll see....
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by EJNchat » Tue Jul 22, 2014 9:38 pm

My drive shaft place also recommended leaving my OEM U joints. He said they were high quality Saginaw joints. Hotness uses the same guy I do. I'm not sure if he had new U joints installed or not.
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by hotness » Tue Jul 22, 2014 10:46 pm

EJNchat wrote:My drive shaft place also recommended leaving my OEM U joints. He said they were high quality Saginaw joints. Hotness uses the same guy I do. I'm not sure if he had new U joints installed or not.

No I left factory ones on as well. To measure this is the best way I can explain. On the end of the shaft when you take it out u can see where it is shiny from sliding in and out of the transfer case. I just installed the shaft to the new rear diff and held it up in place. Then measure how far from the transfer case yolk to the shiny spot on the shaft. That's how much you remove. I don't know if that made any sense.
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by Chango » Fri Aug 01, 2014 2:48 pm

Got mine back today. Took 1.5" off and fit like a glove. [attachment=-1]uploadfromtaptalk1406918889869.jpg[/attachment]
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