Driveline shop in Denver area?

[Rosspbig]

Im having trouble eliminating this moderate vibration/shudder at take off with my 2.5 inch lift and traction blocks. We have tried shimming the carrier bearing, which helped but did not completely eliminate the problem. I am thinking that getting a custom 1 piece driveshaft might be the best solution Does anyone have a good driveline shop that they recommend in the Denver area?

[dannanw]

none in Denver I know of....sorry. springs yes. I am sure one of the denver guys will chime in.

[2006PSDSD]

There are a few here in Denver, but I haven't tried them out. What speed does it happen? Is you carrier bearing in good shape? Tires balances, and round?

[Rosspbig]

Originally Posted by 2006PSDSD

There are a few here in Denver, but I haven't tried them out. What speed does it happen? Is you carrier bearing in good shape? Tires balances, and round?

Happens 0-20 mph mostly. Carrier bearing is shimmed 3/4" but still the vibration is there. Tires are balanced.

Im gonna take it to a specific 4x4 driveline shop this week and see what they say.

[Rob]

I have heard that replacing with a one piece shaft will eliminate the shudder/vibe you are feeling. Id try and work with them to see if the cost is really gonna be worth it, new drive lines aren't cheap.

[2006PSDSD]

There's a place on S Broadway that I have always heard was good. Bear frame and axle, give them a try

Let us know what you find out adn what shop you took it to, because I'm sure that someone will need that type of work at some point

[Gold 7.3]

Here ya go. They do great stuff with fabbed race drivelines as well!

Rocky Mountain Drive Line Spec in Denver, CO - YellowBot

[StrokedInMT]

wow,,,, the sole purpose i got online tonight is because of this EXACT same issue i had for a couple thousand miles and last week my driveline let go, and exited the vehicle....(had to go retrieve it in a field next to highway)... pic to follow soon.

for last three days i have been looking into this issue. ford is not willing to warranty for obvious reasons(carrier bearing shim and lift kit, 4"front/2"rear) however they did provide me with a TSB that says they know of a shudder/vibration issue and sent out a fix for it. what you may not feel stock is magnified with the lift angles on the driveline.

talking to a one of the best shops in Montana i was told that a one piece shaft from steel will have too much 'jump rope' effect, and the only possiblity to get away with a one piece would be an aluminum shaft ($$$)....

the TSB (TSB09-20-5) states that the driveline should have a 3 degree optimal operating angle,,,,,

ANY TECHS PLEASE CHIME IN

Again pics to follow soon

[Rosspbig]

Originally Posted by StrokedInMT

wow,,,, the sole purpose i got online tonight is because of this EXACT same issue i had for a couple thousand miles and last week my driveline let go, and exited the vehicle....(had to go retrieve it in a field next to highway)... pic to follow soon.

for last three days i have been looking into this issue. ford is not willing to warranty for obvious reasons(carrier bearing shim and lift kit, 4"front/2"rear) however they did provide me with a TSB that says they know of a shudder/vibration issue and sent out a fix for it. what you may not feel stock is magnified with the lift angles on the driveline.

talking to a one of the best shops in Montana i was told that a one piece shaft from steel will have too much 'jump rope' effect, and the only possiblity to get away with a one piece would be an aluminum shaft ($$$)....

the TSB (TSB09-20-5) states that the driveline should have a 3 degree optimal operating angle,,,,,

ANY TECHS PLEASE CHIME IN

Again pics to follow soon

Interesting....

I have heard of the Jump rope effect, but a properly balanced driveshaft should not/would not have this problem. I know of many people running 1 piece driveshafts at 80+ mph with no problems.

Sounds like that shop was just trying to upsell you. Why would a aluminum shaft be smoother than a steel shaft assuming they are both balanced properly?

[StrokedInMT]

anything is possible, but he doesn't even do aluminum, so he had nothing to gain,,, what he was saying is that (in my case) a crew cab truck has a massive length between transfercase and pinion. hence the engineers at ford with hundreds of years of combined experience made it a two piece shaft to eleiminate the angles on the u-joints... just what i understand from him anyway... and aluminum is stiffer than steel, hence less jumprope effect...