I just swapped my 203 for a 205 (400,c6, longbed 79 f150) and the driveshaft needs to be lengthened it comes to 69 3/4 inches, is that to long or okay, it's a dd and offroad rig, I need a reply ASAP

 

What do you mean is it too long? How short is yours now from working?

 

About 8-9 in to short and 69 3/4 is where it needs to be

 

You either need to find a 79 f150 with a np205 and get the rear shaft( assuming yours is not lifted and both are stock height) or just get a shaft that is longer and get it cut to length and balanced,anywhere from 50-$150 job at a driveshaft shop.

Or get out the driveshaft stretcher

 

It's lifted 4in, but is that TO long meaning unsafe for dd purposes??

 

Whaddya mean too long?? A 2wd trucks shaft is even longer

 

That's what I thought, but the shop that's doin said it should be fine but he called another shop and they said unsafe over 2500rpm and I should do a 2 piece center bearing thing like on Chevys

 

Should be fine as long as you balance it and don't go with a heavy wall tube.harder to balance
Maybe others may chime in..

 

That's also what I thought and what the shops doin, I just wanted some others opinions, so I think ima just do it and call it good

 

the other shop wants to sell you more stuff. 2 drive shafts and a carrier bearing setup cost a hell of a lot more than one drive shaft.

 

There is no 2 piece/carrier bearing on a stock 4wd 70s F150.. it will be fine.

 

^^^"listen to this man. He is my personal attorney."

 

That's what I thought, so ima just get her done and go from there REALY apriciated guys!