1st off, I love my Unilite in my 4X4 and will get one for my 'Bird

HOWEVER, I have learned 3 things about them that I consider a MUST:

1) get the little inline "filter" from Mallory. Any small voltage spikes in your "hot" wire will eventually fry the module

2) Get the ceramic insulator regardless of the voltage of your "hot" wire. Mine was in the correct range (6 volts) and I still burned out the electronic module.

3) buy a spare electronic module. If it ever burns out, you are completely dead unless you replace either it or the distributor.

HOW do I know?

1) I shorted the distributor to the block trying to get it installed on the right gear tooth. Summit replace the module.

2) My truck died a couple of weeks later. Fried another module. Mallory recommended the filter and the resistor despite my voltage readings. I payed for that one and was problem free for many years.

3) My coil got loose (hey, I really get out there on the trails) and grounded against the distributor body. Yep, another $90 module. Luckily I was 3 blocks from home. However, borrowing another truck so I could get the boat back into the backyard was a real pain.