Re: 78' SWB upgrade ideas/help
Posted: Mon Feb 19, 2018 5:24 pm
Hi Bluey,
try this link for the fitting instructions for the Mark's box - should let you know what you're up for.
http://60patrol.com/forum/viewtopic.php ... 137#p39137
I have heard there are 2 sets of ratios, but I don't know of a way to check them externally except for rotation, sorry.
The biggest issue I think you're likely to face is the tailshaft lengths in a SWB. Notching the crossmember wasn't required in my MWB apparently - it's still stock. In the 3 Mark's boxes I have had one was significantly looser in the linkages than the others, and also that same one had water in the transmission oil - check that if the one you're looking at has been sitting outside for a while ( the water will sit at the bottom so a quick check at the drain plug will suffice ).
cheers,
D
try this link for the fitting instructions for the Mark's box - should let you know what you're up for.
http://60patrol.com/forum/viewtopic.php ... 137#p39137
I have heard there are 2 sets of ratios, but I don't know of a way to check them externally except for rotation, sorry.
The biggest issue I think you're likely to face is the tailshaft lengths in a SWB. Notching the crossmember wasn't required in my MWB apparently - it's still stock. In the 3 Mark's boxes I have had one was significantly looser in the linkages than the others, and also that same one had water in the transmission oil - check that if the one you're looking at has been sitting outside for a while ( the water will sit at the bottom so a quick check at the drain plug will suffice ).
cheers,
D