Sills

[stebec]

I’m looking at replacing both sills on my 1975 Spitfire, is it just inner and outer sills I need, or are there any other bits I need.

Steve

[JohnD]

Those sills are structural to the body tub.   Before you cut them out, brace the door opening, and across the B-posts, with some one inch tube. Triangulate it to be perfect!.

John

[KevinR]

In addition to the inner and outer sills, you will also need the center strengthener (806638/9) that fits between the inner and outer sills.

Depending on how rotted things are, you may also need a new floor edge, or at least some steel to fabricate a new edge.

You may also need the filler that goes in the door opening at the back of the A post (206288/9), and the rear extension (RL1263/4).

Expect to find some corrosion you didnt expect and plan to buy additional repair panels as appropriate.

[chrishawley]

Ditto above but perhaps to add front sill end closing panels (706422/3): Depends on the extent of the corrosion, but quite a possibility.

During disassembly it may be advantageous to pay particular heed to the relationship between the floor pan, inner sill, sill stiffener and outer sill at the lower edge as below.

[Fergusminto]

Just started exactly the same. ‘72 MkIV 1500. Inner sills are serviceable with a fair bit of welding but replacing strengtheners, outer sills, end caps and ‘A’ post filler panels. If you want I can send over the ref nos. Checked prices and Fitchett’s appear to be the cheapest. Best. Bruce.

[Josef]

1 hour ago, Fergusminto said:

Just started exactly the same. ‘72 MkIV 1500. Inner sills are serviceable with a fair bit of welding but replacing strengtheners, outer sills, end caps and ‘A’ post filler panels. If you want I can send over the ref nos. Checked prices and Fitchett’s appear to be the cheapest. Best. Bruce.

If you’re a club member, buy panels via the club shop. They’re shipped direct from Fitchetts but there’s extra member discount!

[Fergusminto]

I didn’t know that! Thanks for the info!