driveshaft lenghts (th400 swap)

[Project86]

just curious if anyone on hand has a list of driveshaft lenghts regarding an 86 c10 with small block and a th400 and 10 bolt rearend.

used to have a long tail th350.and of course i couldnt reuse my driveshaft.

here soon i'll be upgrading my transmission and pinions yokes, and i decided my truck no longer needed a driveshaft and it saw its happy way out.

[geezer#99]

I have no list but I do have a tape measure I could give you! JK!
But you do need to measure it yourself.

[crazy longhorn]

My thoughts.....what you need is the slip yolk in the trans, that you plan to run,as well as the U-joints (front & rear). Slide the slip yolk into the trans, till it hits bottom& mark it with a sharpie, right next to the seal. then, pull the yolk out 3/4 inch minimum, to 1 inch max. You will want the weight on the wheels, when you make this measure! At this point, you can measure center of caps , on the front & rear u-joints for the lenght of your d-shaft. Best of fun....Longhorn

[jamyers]

Originally Posted by crazy longhorn

My thoughts.....what you need is the slip yolk in the trans, that you plan to run,as well as the U-joints (front & rear). Slide the slip yolk into the trans, till it hits bottom& mark it with a sharpie, right next to the seal. then, pull the yolk out 3/4 inch minimum, to 1 inch max. You will want the weight on the wheels, when you make this measure! At this point, you can measure center of caps , on the front & rear u-joints for the lenght of your d-shaft. Best of fun....Longhorn

That's exactly what my local driveshaft shop wants whenever they shorten / lengthen a driveshaft.

Best to talk to your local shop.

[Project86]

that all makes sense.
i have a driveshaft that worked, however when it decided to take a hike during a hard test drive, im thinking about having one made anyways.

that very well could have been one of the many problems anyways is a junkyard "hey this fits the length i need" driveshaft