I see a few questions about Watts Linkage vs Pan Hard bar and thought I'd post this link.
http://www.tsmmfg.com/Watts_Linkage.htm
http://www.tsmmfg.com/Watts_Linkage.htm
Watts Linkage
- Thread starter GT63
- Start date
tfeverfred
Well-Known Member
The Watts linkage is great, in my opinion, but it may be overkill for street use. My Total P chassis uses it, but it may get in the way of my gas tank choices, due to bracket placement and how the piviot mounts to the rearend.
EX JUNK
Moderator
I took a different approach...
I used an adjustable "four link" set up (not to be confused with a "four bar" set up) like in some drag cars and a "wishbone" locater on my car. The wishbone acts the same as a watts linkage in that you have true vertical movement but there is no interference with trunk floor or gas tank. I have found this to be a very good system and not too complicated to install. It may well be worth considering in your next build.
I used an adjustable "four link" set up (not to be confused with a "four bar" set up) like in some drag cars and a "wishbone" locater on my car. The wishbone acts the same as a watts linkage in that you have true vertical movement but there is no interference with trunk floor or gas tank. I have found this to be a very good system and not too complicated to install. It may well be worth considering in your next build.
EX JUNK
Moderator
Sorry...
I am not smart enough computer wise to post pictures. I can send them to an individual but can't post them because I'm computer illiterate. I do have lots of pictures in my file and will be more than willing to send to anyone. Or if someone who is a computer genius would like to post my pictures, they are more than welcome to do that. My e-mail address is: ***jimnnan42@bellsouth.net*** (remove the stars.)
I am not smart enough computer wise to post pictures. I can send them to an individual but can't post them because I'm computer illiterate. I do have lots of pictures in my file and will be more than willing to send to anyone. Or if someone who is a computer genius would like to post my pictures, they are more than welcome to do that. My e-mail address is: ***jimnnan42@bellsouth.net*** (remove the stars.)
LumenAl
Member
adjustable 4 link
These pictures are from Ex Junk, aka Koala T on NTBA site (Jim Hoffman)...
His chassis is all home made and designed. It is somewhat different than the norm. It has quarter elliptic springs up front made from the front springs from my '37 Chevy and using a four set up with a panhard bar locater.
The frame itself is also different in that I have incorporated a K member to alleviate torsion stress on the rails. It's all constructed with 1 1/2"x 3"x 3/16" wall tubing except some cross members are 1 1/"2x 1 1/2'x 3/16" tube.
The adjustable four link with the wishbone locater, which was the topic of discussion, is shown in the pictures below.
This one shows the wishbone locater:
This one shows the adjustable four link
the last two depict the completed chassis
Anyway, as you can see, Jim really did some outstanding work here and I'm sure he will be happy to answer any questions you may have...
Youngster said:
These pictures are from Ex Junk, aka Koala T on NTBA site (Jim Hoffman)...
His chassis is all home made and designed. It is somewhat different than the norm. It has quarter elliptic springs up front made from the front springs from my '37 Chevy and using a four set up with a panhard bar locater.
The frame itself is also different in that I have incorporated a K member to alleviate torsion stress on the rails. It's all constructed with 1 1/2"x 3"x 3/16" wall tubing except some cross members are 1 1/"2x 1 1/2'x 3/16" tube.
The adjustable four link with the wishbone locater, which was the topic of discussion, is shown in the pictures below.
This one shows the wishbone locater:
This one shows the adjustable four link
the last two depict the completed chassis
Anyway, as you can see, Jim really did some outstanding work here and I'm sure he will be happy to answer any questions you may have...
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