Split wishbones and Spring perches

PABob

PABob

Junior Member
I am planning on putting a 5 speed in my 40 and I know you have to split the wishbones but in all the post I have read on the subject I have not come across any one mentioning that the perch ends must be heated and bent so that spring perches are at right angle to axle and parallel with spring eyes until I was looking for springs on Posies web site. Is this always necessary or can some setups get away with out doing it? What have some of you done?
Thanks for the input Bob.
 
Did the same conversion with a Chassis Engineering kit. Very good instructions came with ;the kit for heating and bending the spring perch area with a carpenters square. Came out fine.
 
My friend did it on a 40 Coupe and didn`t split the bones !
It`s tight but it works.
He just fabbed some plates to restore strength in the crossmember.
 
I used the Chassis Engineering split wishbone kit on my 40 sedan almost 30 years ago and it came with instructions on heating and bending the spring hangers.

Worked out great. HRP
 
PABob said:
I am planning on putting a 5 speed in my 40 and I know you have to split the wishbones but in all the post I have read on the subject I have not come across any one mentioning that the perch ends must be heated and bent so that spring perches are at right angle to axle and parallel with spring eyes until I was looking for springs on Posies web site. Is this always necessary or can some setups get away with out doing it? What have some of you done?
Thanks for the input Bob.
Click to expand...
Bob, I had bought the wishbone kit from chassis eng. Changed plans and not going to use the kit. Email me elwendto@yahoo.com will sell them for what I paid and I will ship it to you.;)
 
You need to bend the bones behind the axle and not swivel the bones on the axle. If you turn the whole bone, the mounting distance of the spring will decrease and the spring will be too long.
You are really going to have to cut the frame all up. Silly Ford engineers putting all that stuff in the way! At least the car is a closed car instead of a conv. You would never get the doors to work right in an open car.
 
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