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Old 06-09-2019, 12:43 PM   #1
KyFarm
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4L70-E 2wd vs 4wd

I'm considering using a GM connect and cruise set-up in my "69 4WD.

I've about got it narrowed down to the HT383 w/ a 4L70E. Price and installation issues have me thinking this choice vs. the LS based options.

My question is this. Many places in GM info they reference a 4L70E as a 2WD only trans and others places as fit for 4WD.

Is there an actual difference in the transmission on 2 vs, 4WD vehicles or only the installation issues?

Thanks for any help
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Old 06-09-2019, 03:49 PM   #2
YoungPup1977
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Re: 4L70-E 2wd vs 4wd

Output shaft is different. If you have a 4x4, than you will need the shorter output shaft for the transfer case along with the adapter between the trans and TC. The 4L70 series will have the six bolt adapter.
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Old 06-10-2019, 07:51 AM   #3
KyFarm
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Re: 4L70-E 2wd vs 4wd

thanks
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