Spring plate adjustable

[rapido]

Who have sway spring plate in SWB ? is it the best solution for lowered easy the car ?
JLC

[ttweed]

There are only a couple of aftermarket choices for the SWB cars. There is the older
SwayAway version or for the ultimate in adjustability, the newer Elephant QuickChange spring plate.

Wevo was considering making a SWB version of their SPS but I don't think they ever went ahead with it, due to a perceived lack of demand and other design/development priorities.

The other alternative is to modify the LWB factory adjustable springplates for the SWB dimensions. This has been done before and illustrated here on the bird board.

There are two different bushing configurations on the SWB springplates, so you need to determine which you have before purchasing replacements. The early '64-66 cars have smaller bushings which are replaceable, compared to the '67S-68 models, which had larger bushings vulcanized to the spring plate pivots. All the '67S cars had the bigger vulcanized bushings, but some of the early 67 Normal cars didn't. The factory service manual states:
"Beginning with the chassis serial numbers listed below. Type 911, 911S, and 912 vehicles are being equipped with radius arms which have rubber bushings vulcanized into place:
Type 911 S -from Chassis Serial Nr. 305 101 S
Type 911 - fm Chassis Serial Nr. 307 325
Type 912 - from Chassis Serial Nr. 354 938
The Radius arm seats in the transverse support tubes had to be enlarged to accommodate the new radius arms, Consequently, the new radius arms can be installed only into vehicles built since the above chassis serial numbers."

On my '68, I went with the cheaper SwayAway springplates, but used the '69-and-up Elephant polybronze bushing set with them. Since the '68 has the larger inner seat or "cup" for the pivot bushing on the torsion tube end, the plastic bushings that come with the SwayAway plates would not work anyway (they are supplied with the early, skinny, replaceable bushings).

For simply lowering the car, adjustable spring plates are not required, it can be done by just re-indexing the torsion bars. However, when corner balancing, having the easy, finer adjustment range is a big timesaver.

TT