Here's the measurements I got from my 1973 BGT with chrome bumpers:
Rear ride height: 17.25" for the right side and 17" for the left side.
Brand new Checkstrap length (hole centre to hole centre): 8.25"
Bump clearance: 6.25"
The rear springs have 7 leaves each and the rear shackles are slightly inclined
"rearwards" with the car on its wheels.
The exhaust-to-axle clearance is about 1/2" and the handbrake cable chafes on
the exhaust tube as it passes over it. The point at which they cross is where
the exhaust tube curves upwards to enter the rear silencer box.
So, is this OK? How can I put the new checkstraps in? The only way I can imagine
is to ask for someone to sit in the boot while the car is on ramps (I have to be
underneath to work) so the rear springs are a little bit compressed. All
pointers are welcome!
Regards,
Evangelos
paul.hunt1@virgin.net wrote:
> The exhaust is *supposed* to go under the axle and so does the handbrake
> cable.
>
> When the car is on its wheels there should be slack in the rebound strap,
> but you do have to jack under the axle some when the body is supported on
> axle stands to get the strap on its pins. How long are your straps?
>
> What rear ride height do you have? Have a look at the web site below (click
> 'Spanners' and 'Ride Height') to see how to measure the height and some
> typical measurements from around the world. How does yours compare with
> these? I have had RB roadster springs on my CB roadster and connected up
> the straps no problem. It looks like either you have very wrong straps or
> very wrong springs or the springs are incorrectly fitted or located. Can't
> go far wrong at the front eye, but is the rear shackle pointing backwards or
> forwards as it drops from the chassis rail to the rear eye? It should be
> backwards.
>
> PaulH
> http://www.mgb-stuff.org.uk
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