coming along nicely
Looks excellent (as usual)
Hi Guys, Happy New Year to all at Rods n Sods .
Thank you very much for the comments
Hi Wayne , yes the brackets are cut on a plasma table.
I wanted to make the most of the time off over the festive period .
My first task was to weld in the 4 bar brackets ,the air bag cross member , the lower bag mounts and their closing plates.
I then made up some gusset plates to strengthen up the joint where the chassis legs and cross member join.
The exhaust is very unlikely to fit between the axle and the cross member, so I made up some tubing ( couldn't find any the right size before everyone closed up for Christmas) and cut and welded it in between the gussets to allow the exhaust to run up the outside of the chassis legs.
I really didn't want a panhard rod and not keen on a watts linkage so a "Track Locator " is the direction i'm going in . ( THANKS DAVE I would never have thought of this )
So I gathered up some materials . 2 x lengths of 316 20mm tubing ,1x piece of 40mm x 100mm solid 316bar , 2 x 5/8 unf rose joints ,
1 x stainless grease nipple and an off cut of 3 mm plate ( an off cut from my grille bars ).
First job was to drill and tap a 3/4 UNF thread in one end then drill and tap an m10x 10 in the other end and tun down a taper .
Then make up the mount that gets welded into the lower section of the propshaft loop.
Next drill and tap one end of the 20mm tubing for the rose joints .Then bend the tubing to come to the centre of the prop loop.
I then mocked all the bits and pieces in position and designed a cross plate to link the tubes together and add a bit of rigidity .
This plate was a bit rough from the plasma cutting and took a bit of cleaning up.
Then welded it all together .
I take it you are removing the upper links and just running a standard 3 link with a upper wishbone that you have just made instead?
Hi Marcus, I think these pics should explain this devise . The track locator uses the same front pivot point (although its central) as the lower front 4 bar mount and uses the same mount on the axle ,so as the axle goes up and down the track locator does not extend or decrease in length .All its doing is triangulating the 4 bar . I believe the drag race guys can use a similar set up although its more of a crucifix design . I think Chassis Works use it on one of their set ups ???.
Next job before tackling the shock mounts is to make the final rear cross member ,I have only ever had a piece of 50mm x 100mm box tacked in position . The problem with the rear of the chassis is that when the truck bed goes on because of the shape of the fort lower corners it has to go under the cab first the lowered down .This isn't to bad at mock up stage but when its all painted it will damage either the bed or the cab . To overcome this the bed would go on first then the cab but this is not practical for plumbing wiring etc. So I have decided to modify the rear of the chassis to enable the bed to go on more easily
So I have made a new rear cross member which has some thick steel welded inside to allow me to drill and tap for a removable bed mount which should make things alot easier !!!.
New cross member , next make up the removable piece
Thanks for the extra information. I had not seen a wishbone used as well as upper and lower links. It usually just replaces a pair.
The one's I've seen in drag racing (track locator) always have a slipper joint at the front, due to the different arcs of travel between the four link and track locator, otherwise it may bind up ?? great build by the way.
I thought it had a slipper joint but now you mention it I'm not sure it does.
If one is not fitted then that will snap off in very short order. If you want to see what happens try jacking up one side of the axle only and see what happens to the other side.
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