View Single Post
Old 04-05-2024, 01:02 AM   #3
1972RedNeck
Registered User
 
1972RedNeck's Avatar
 
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
Re: Dana 60 kingpin death wobble

Quote:
Originally Posted by 57taskforce View Post
A few things come to mind here. When you swapped the dodge 60 in did you use the offset shackles to mount it? The dodge 60’s sit on a slightly narrower perch width than the GM 60’s. If you didn’t use them I wonder if there’s something there.

Also you mentioned the spring bushings being new, what kind did you use? Did you replace the actual king pins themselves in all this? Shackle hanger bushings new too? Shackle hangers themselves not worn out? (Mine were) Bolt holes in front hangers not wallered out? (Mine were) Same with shackle holes? How about your toe, where is it set? I suspect you’ve got a bigger issue than king pin issues and you are only masking the problems by focusing on just the king pins and really obvious stuff like the rod ends. Is your truck stock height? What condition are the springs and shocks in? How is your steering box, and it’s mounting holes in the frame? Any cracks around the steering box mounts? these trucks are notorious for that. Basically any loose part or combination of loose/worn parts/mounting holes can cause death wobble. Improper toe can be a big cause and wrong air pressures can even contribute. Lots of things to look over for sure. I’ll add a link to said conversion shackles.

https://www.offroaddesign.com/hd-fro...-hanger-1.html
I used the offset poly spring bushings. Shackles poly as well. Toe is just shy of an 1/8 - drives perfect and no tire wear.

Steering box mounting is solid. No play in the box.

All the steering parts are tight and I have went over them with a fine tooth comb. Genuine spicer parts in the axle.

2” lift springs.
__________________
1966 F250 4X4 416
1972 K20 350 4 OTF
Quote:
Originally Posted by GASoline71 View Post
I once pulled an intake manifold for a cam swap... ended up with a full on drag car that ran in the 11's.
1972RedNeck is offline   Reply With Quote