Is there a good rule of thumb that I can go by for the correct length of both of my drive shafts, when installing a 2nd case? They are both top shift cases, and the doubler is made by Trail Gear, I am having my cases mated right now, but I want to take my shafts to the driveshaft place tomorrow, so HOPEFULLY I can be out on the trail this weekend, the shafts were just fine when it was a single case, how long should I tell the driveshaft place to lengthen the front, and shorten the rear? I have been told that adding a doubler adds 6", so basically just tell them to lengthen the front 6", and shorten the rear 6"?, I could wait until I get both cases installed, then measure flange to flange, but then I dont think I can get back on the trail in time for the weekend I am impatient Also, anybody in the Denver area hear of a good/fair priced driveshaft place? I have used Driveshaft doctors alot, but for the amount of times I have used them, they never give me a break.

 

Boulder Driveline - ask for .120" wall (their normal heavy duty is 095" wall)

 

Ok I answered my own question, it is 6.5 inches that I needed to lenghthen my front, and shorten the rear 6.5", thought this might help someone in the future!

 

Did you ever measure flange to flange?? I'd be leary about just adding a distance and then spending $500 on shafts without measuring. Also what crossmember are you running? The Trail Gear one is awesome but you'll need another Tcase mount to mount it properly.

 

You're SA in front right? As long as you have a good slip joint (which the SA should) it shouldn't be too critical on the measurement.

 

Yeah I have the Trail gear dual case crossmember, I love it, just went to the salvage yard for the 2nd tcase mount

 

So how much did you end up paying for the retubeing? I am looking to retube only my rear...

 

Rocky Mountain Driveline built both my front and rear.

Rather than asking a bunch of monkeys on the net, why not do it right and measure YOUR truck at YOUR house? There are good rules of thumb, but there is also the rule of guaranteeing it is right by measuring yours.

The measurements are important. If you already have a long slip front, then you are probably talking 150-200 per for a retube to .120 and a balance.

 

x2, Don't forget that different crossmembers will also create different measurements. You should also take into consideration the amount of droop compared to up travel of your suspension system.