Now that I have the DickTater running well, it's time for the fun stuff. To give an idea of the goal here, think low buck Mad Max S Class.
I picked up a set of dirt cheap 265/70R16 all terrain tires that I'm going to mount to the stock W140 wheels. I have some wheel spacers on order that will push the tires out far enough for needed clearance on the upper ball joints up front. Obviously fender clearance will be an issue, but it's nothing some (extensive) Sawzall work won't solve.
The rear suspension is as hard as a rock, so I assume the accumulators are bad. I don't recall my S500 parts car having stiff suspension, so I think I can probably swap those over. I'll yank them out and find out.
I might consider lifting the suspension depending how things go with the wheel spacers and Sawzall. Coil spring spacers would give me a little lift. Custom brackets and spacers to lower all the suspension pick-up points would give me a bunch more if I need it, although it would be a lot of work.
One thing I'm keenly aware of is the fact that the larger tires will effectively gear up the final drive. This will affect torque and acceleration, and maybe more importantly will make the car run hotter. My plan to deal with that is first to add plenty of additional ventilation. The hood will get a few badly executed scoops and vents to help hot air escape the engine compartment.
The best option would be to swap the rear differential. I'm not sure exactly what would work there though. Dave's spreadsheet doesn't have the case numbers for the W140 cars. I'm wondering if something like an S320 diff would be a direct bolt in.
I know I'm venturing away from the $400 400E with this W140 thing, but I consider this a side quest to that whole saga, so I'll just keep it going here. Or maybe I'm just too lazy to create a new thread.
Does anyone know if something like a 3.27 or 3.45 bolt in rear diff swap exists for the W140.051?