Shutter off the line

[prowirenut]

I have a 02, 250, 7.3 with about 94000 on it. It has a 6.5" lift and 37" tires. I get a shutter if I get on it from a stop, if I'm easy with it then it doesn't do it. It also doesn't seem to do it at any other speeds or into any other gears. It almost feels like the tires are breaking loose but I know they are not. Could this just be a T/C or should I start saving up for a tranny?

[sea71]

I have an 02. Mine does it. I had a tranny built, I put in transgo tugger kit, I put in 2 different torque converters and I still shutter of the line. I shimmed the drive shaft carrier bearing a little and it helped some. Hope this helps.

[prowirenut]

I didn't do the lift but it looks like it's shimmed properly. I didn't use an angle gague or anything on it. I'd really like to find out what it is before I drop my 5th wheel trailer on it and then, of course, find out to late.

[sea71]

Didnt mention that I am not lifted. I can understand about the 5th wheel too. Good Luck. I have asked various techs about this, and have had a couple in the truck and driving it, and still have no concrete answer to what causes it. So I keep on driving. lol.

[bigwhite7.3stroker]

I would start by shiming the carrier and see if it fixes it or improves it some

[prowirenut]

Ok I'll try that. What would be a good drive shaft angle to shoot for?

[ipz2222]

2wd or 4wd? 2 piece shaft or 1 piece?? Trans mount bolts loose, carrier bearing bolts loose, rubber in carrier bearing collapsed, ujoints stiff or cracked bearings???

[Rob]

mine does it too. either your driveshalft isnt alligned properly, or you are getting what is called axle wrap..

[ipz2222]

rwalker, can you explain axle wrap???

[outrage]

I have a 6.5" lift with 35" tires and mine was doing the same thing. We tried all kinds of shims and spacers for the carrier bearing and could not get rid of the take off shudder. I finally had a 1 piece driveshaft put in to replace the two piece and get rid of the carrier bearing and it fixed my problem. I'm not sure if this works for everybody but it fixed mine. Hope it helps.....

Terry