Was told by my indie mechanic that the cable from the battery positive to the starter is where my voltage drop problem is occurring and that I need to purchase a new one for my 1995 855 non-turbo.

Anyone know if this cable HAS to come from the dealer? Autozone said they have one and it's a 2-gauge, 56" long wire for $18. Would that suffice? Is it just a single wire?

THANKS for your advice.
Dukester

Usually the cable itself is OK. But the cable ends (Crimp connections go sour)
and the various connections may require coming apart wire brushing and reassembly
with a conductive grease such as Never-seez. The cable ends can be resoldered
by a pro and or replaced. Go to a starter-Generator repair shop for a quote.
I haven't messed with an 850 battery cable set yet, but a 740 harness is $140
and you would be wise to forget Autozone.
There's ends at the starter solenoid, the alternator, the battery, and the car frame that all need to be happy.

It is a single wire:

http://www.fcpeuro.com/products/volvo-battery-cable-positive-850-c70-s70-v70-9456836

$74.00

Before you get a new wire, check the battery end of yours. Sometimes cutting off 1/2 inch of green/broken wire and putting it back in the coupling will work wonders. Some have just wire brush cleaned and blown off the dirt, wrapped it back up, and it works again.

Junk yards have them also, very cheap. At least models up to 2000 are the same.