Thread: Isuzu MSA Gearbox Oils and Gear shifts

180 - honest? This is the 4bd1t and msa5 or some 6 speed?

Originally Posted by workingonit

180 - honest? This is the 4bd1t and msa5 or some 6 speed?

Yep Nup 4.7 L SOC 4he1t MXA 5R 3.0 diffs

Thanks Ancient. What's SOC mean - speed overcomes commonsense?

Just sunk in, i think, single overhead cam?

Originally Posted by steveG

I'd throw some engine oil in it for starters to flush the other stuff out. Run it like that until you do your next engine oil change.
That way if there's a leak (being an unknown box) you're not throwing out good stuff when you sort the leak out.

Steve

Filled it with vmx80, will take it for a run tomorrow. No leaks so far, rear main turned out to be leaky side cover running down the back of the flywheel housing

VMX 80 worked a treat, much better to drive, 1st is still like a non synchro box, but I can live with that

Originally Posted by Vern

VMX 80 worked a treat, much better to drive, 1st is still like a non synchro box, but I can live with that

My understanding was that they are practically only a 4 speed box, with an additional very low (and generally unused) first gear.
Just pretend its an LT95 with a funny shift pattern and all will be sweet

Steve

I actually use first all the time. With the 1.003 transcase, 3.54's and 285's, it works quite well, hey I even got the speedo spot on

Originally Posted by steveG

My understanding was that they are practically only a 4 speed box, with an additional very low (and generally unused) first gear.
Just pretend its an LT95 with a funny shift pattern and all will be sweet

Steve

Yeah I use 1st on mine only as a creeper gear. Start in second even when towing.
I suspect the lack of syncromesh on 1st is intentional to stop it being grabbed accidentally.