Not sure the stock clamshell will fit without dropping the hinge point.
There is an aftermarket spare tire holder that will accommodate larger
tires such as 215/75r15.

On 9/23/2016 7:07 AM, Andre Fiedler wrote:
> I recently acquired a spare wheel with BF Goodrich All Terrain T/A KO
> LT 215/75R15 tire on it and, if possible, would like to store it in
> the clamshell of my 2wd 89 Westy.  Has anyone successfully made this
> work and if so, could you share details as to how you had to modify
> the clamshell, please?
> Thanks in advance.
> Andre Fiedler