I have fitted many in both RH & LH drive cars. The hole for the motor MUST be in the original or "mirror" spot & the mounting holes are the same both sides, just moved across (as the unit is mounted same way up). So a template of a 67-70 firewall (where the heater mounts) will be needed to mark out the holes.
The demister on the top of the Old Air heater/AC box must be sliced off & turned around, that is the only mod for RH drive.
When doing a conversion, you must have all the parts that are being fitted & perform the conversion to suit. That is why I can use the original pedal box (& pedals) so all parts remain standard or LH drive restomod parts can be bolted on.
I am using one and had talk to SP yesterday in relation to it. Kerry provided me with the details for changing to RHD as he had above. SP can have a look if he wishes and measure if that will help. Glove box is no issue, it does come down a little lower into the foot well than the factory one though it is not an issue. There is the advantage of not being as wide as the factory unit hence leaving space under the dash for other items (in my case EFI computer related wiring, relays and ECU).
Pretty sure the AC will fit I just want to know how deep it is ie front to back. There enough room in Ralphs car for factory AC, I just thought a new one would be easier for all concerned and perhaps more efficient in operation. worst case I'll convert the factory one, which is what I was going to do anyway. Easy enough to put the bit hole in the firewall & reinforce it, just want to sort prior to painting the bay.
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