In need of driveshaft help

[40TUDE]

I am putting an fj80 full drivetrain into my 40. I was planning on using the stock 80 rear shaft for the front shaft on the 40 (it is the perfect length). To my surprise it turns out the flanges are different by about half an inch so this wont work. I checked to see if I could swap the driveshaft flanges front to rear, but the u-joints are a different size. Do I have any options here other than going custom? I was going to try to drill new holes but the flanges are so much bigger on the driveshaft that it wont work. Is it possible to get flanges somewhere that would work, adapters?
any help is appreciated
thanks

 

[40TUDE]

fwiw the shaft is 44 at full ext. and 39.75 fully compressed
thanks

 

[fieldsken1]

just go to a driveline service shop they can change them

 

[40TUDE]

this is something they would stock? if so thats great

 

[zebrabeefj40]

You can either get a conversion u-joint (one pair of caps matches the driveshaft tube; the other pair match the correct flange). Or you can have the driveshaft shop cut the ends off both shafts and reweld them where they need to be (what I think fieldsken1 is trying to say).

Nick

 

[Josie'sLandCruiser]

Hi All:

It might be easier to swap-in a pair of 80 Series rear axle third members into your current 40 Series axles to gain the correct pinion flanges to suit those 80 Series drive shafts.

Regards,

Alan

 

[Chop Shop]

80 driveline, 40 slipyoke

 

[40TUDE]

I have the 80 axles in front and rear. I realize I could swap pinion flanges, but that still leaves the transfer case end. I will look into the conversion u-joint, that may be the ticket.
thanks

 

[40TUDE]

from what I can find the only conversion joints are for domestic stuff

 

[Bret]

Slip yokes the same by any chance? There are pinion flanges drilled for multiple patterns available, could swap the flange if the patterns match.

 

[40TUDE]

slip yokes are interchangeable but of different lengths so it ends up not working out

 

[cruiserjunkie]

Cruiser outfitters has an undrilled flange for the case I believe

 

[40TUDE]

I think I found my fix. Toyota Driveshaft Flange Adapters

 

[rusty_tlc]

Save yourself time, $$ and effort, get the drive line re-built at a driveline shop. Just my opinion based on many years of "making stuff work" that cost me more in the end than doing it right to begin with.

 

[40TUDE]

at this point I am just trying to get it together for testing etc if I think I need a new shaft I will get one
thanks