2nd Gen Non-Engine/Transmission Dana 70 to 80 driveshaft length

[John Dishong]

Well I just installed my Dana 80 for the 70. I realise that the driveshaft needs to be shortened. The truck is a 98 guadcab short bed. I have heard it is like 3. 375". The dealer says the two driveshafts list as being 4" different.



Any Help. Thanks.

 

[Pinion Twister]

I'm not 100% sure but i think i only had about 1 1/4" taken out of mine.

It is a 99' quadcab shortbed.

Keith

 

[Cooker]

I had about 1. 25" taken out of mine too. I would have to search to see if I can find the exact amount.

 

[2broke2smoke]

1 1/2" on mine ... tried 1 1/4 and it was a touch too long

 

[MDW]

1 1/4" here

 

[Klassen]

1 1/2'' here

 

[John Dishong]

Thanks everyone,

After I shortened it at Custom Drivesshafts Mike balanced and said, "Hey did you know this thing was bent". Ahhhhh NO. So now I need to make another one. The stock is only . 093 wall tubing. I think I am going to . 134 wall. That should keep it from bending again. I guess one too many truck pulls.



Thanks again.

 

[John Dishong]

Hi,

I do have another question. As the suspension compresses on these trucks, does the axle to xfer case dimension get shorter or longer? I have heard both.



Thanks,