Motor Mounts / trans mounts

[JGrefenstette]

thanks for the info dvalentine. thats good to know.



Philip... you are saying that sense i have around 30* of slop in my drive shaft that my gears are junk? would replacing the spider gears solve the problem?

 

[dpuckett]

There is a difference between backlash in the ring and pinion, and slack in the spiders. I have never seen even a newly rebuilt axle have zero play, and I always it was in the spider gears. You're telling me that if there is any noticeable slack, the axle is junk, or needs rebuilt? I was going by personal experience with 10 pickups in the last 10 years, not any book. My bad.



For reference- 45deg is 1/8 of a full circle. I'll have to go out and measure, but I'd bet my D80 has at least 20deg slack. It's just in the spiders, axle shafts to side gears, etc.



Daniel

 

[DodgeWarlock]

Before the 60 rear end in my crew reached 45 degrees of play it snapped a tooth off the pinion because the wear pattern had moved to the edge of the tooth. I knew it was worn slap out and was not abusing it, but it did not care. When I opened her up the spiders were loose and the pinion bearings are shot. Splines on the axleshafts were in bad shape, too.

 

[Philip]

Daniel if you are 100% sure all the slop is in the spiders then you could live with it. But remember on hard shock load it could blast the spiders out. Most of the time if you blow a set of spiders it will take out the R&P before you could get the truck stopped.



Most of the time if I see that much slop I am finding and fixing the problem. My rear axle has less than 10 degrees of slop. I'll fix it when I take the truck down for the cab swap.

 

[dpuckett]

Wear pattern on the teeth of the R&P look good, and I couldnt get any noticeable movement when I grabbed both and tried to turn them against one another. I go real easy in and out of the throttle- helps MPGs . I'm going to replace the spiders before I go off to shoeing school for sure. That, and get the AC fixed once and for all.



DP

 

[Philip]

The Dodge Dana uses shims for adjustment just like the Ford Dana's.

 

[Niki]

I just got my "newest" firstgen today, a 91 W250 5 sp. Of course, the mounts are shot on this truck too. Just like I posted, I think every firstgen out there needs them...

 

[JGrefenstette]

i thought ford used sterling rear ends?

i think my motor mounts arnt as bad as i thought they were. i think i just need to re-tighten the trans mounts from when i replaced them a few months back.

 

[DValentine]

Dana supplied Axles for the big three, and others for years.