[Healeys] Suspension Changes & Now Front End Vibration

[Steve B. Gerow]

John,
Your experience is the reverse of mine. I had the scuttle shake - felt like an out of balance wheel at 55-60 mph.

On examination, my upper trunnion bushes were completely gone - my upper trunnions consisted of a 1/2 inch bolt in a 3/4 inch hole. I drove the car for years like this!

I rebuilt my front suspension, replacing the lower A-arm bushings with the purple poly bushings Cape sells, along with the needle thrust bearings and also Cape's adjustable upper bronze bushing. My kingpins and lower trunnions were perfect so didn't need disassembly.

On installing the upper trunnion bushings the scuttle shake disappeared. My car's a rust-free California car. 

I wonder if Erica had the problem all along and replacing the upper trunnions somehow accentuated it. Will be curious if replacing them with the stock rubber parts removes the shake.

-- 
Steve Gerow
Altadena, CA
BN6