4L80E Swap Crossmember Mod (pics)

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12-22-2014, 01:14 PM

#41

tgui

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Quote:

Originally Posted by Atomic

2.5 inches

Wow, what don't you know?!

Is that about the same I need to shorten the rear driveshaft?

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12-22-2014, 01:35 PM

#42

Atomic

I have a gauge for that

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No, rear drivershaft needs to be shortened 1 13/16", and the front extended the same.

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12-22-2014, 02:00 PM

#43

tgui

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Quote:

Originally Posted by Atomic

No, rear drivershaft needs to be shortened 1 13/16", and the front extended the same.

Once again, thanks. I picked up a HD front driveshaft which is purported to work.

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Part # if someone stumbles into this thread as I did.

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(I'll now stop clogging up this thread until I actually finish my cross member modding)

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12-22-2014, 02:46 PM

#44

03sierraslt

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Thats the same front driveshaft that I have, worked like a charm.

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12-22-2014, 02:48 PM

#45

tgui

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Quote:

Originally Posted by 03sierraslt

Thats the same front driveshaft that I have, worked like a charm.

Good to know!

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12-22-2014, 03:17 PM

#46

Atomic

I have a gauge for that

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I ran a stock length shaft for a while and it worked fine, just didnt have all the spline engagement it could have. I didnt put a lot of power through it, but it would work in a pinch.

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01-04-2015, 09:18 AM

#47

Mike454SS

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Is that 15182094 front shaft the same in a 1500HD and a 2500? Just want an idea of donor vehicles to get one from.

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01-04-2015, 11:43 AM

#48

tgui

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Quote:

Originally Posted by Mike454SS

Is that 15182094 front shaft the same in a 1500HD and a 2500? Just want an idea of donor vehicles to get one from.

Just a 2500 as I remember.

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10-03-2019, 06:28 PM

#49

Hector Rivass

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4l69 to 4l80 measurement

How far back does new whole for the cross member have to be
Im installing a 6.0 with a 4l80 into a 2007 classic Silverado had a v6 in it before and drive shaft wont go in either
if any one has insta can u guys send me info I really don’t know how to check up on this just made account it’s @ssclone_hector