rangitan

I live on a desert island out in the Pacific that's already full of convicts. Thanks but no thanks.

Thanks for the input everyone - Lmackattack, if by "passenger side" you mean the left hand side when viewed from the rear (here in Oz we are not just Down Under, but also Ass About), then yes I can definitely see what look like injector heads. I also read elsewhere in the forums that the greenish blue paint is a 2V giveaway. I reckon you're right about it being a 6 speed with a split only in 1st on the main - I can actually drive it like a splitter all the way to top (and back) without gnashing any teeth, but the timing is so critical to flick the split with revs and clutch all lined up I can't see the idea being sellable to any but the most enthusiastic knob jockey. Kudos to a newbie with only 15 hrs experience on a crash box I guess. The PTO also looks like it comes off the lower countershaft at the back of the box just like you said. Once again thanks for all your help.

Hi folks, I'm new to Mack trucks and have just picked up an '83 MCR with a Maxidyne 237 hi-torque engine and 5-speed with air shifter on the knob. I'm trying to identify all the model numbers so I can buy the right service manuals and am a bit bewildered by the range of different boxes and engines that came out in these trucks. The truck has a splitter type airshift on the gear shift knob, effectively giving me 10 foward and 5 reverse ratios, with a neutral position that must be used when engaging the PTO. To engage the PTO, the transmission must be put into gear, typically 2nd or 3rd. If anyone could give me clues on the following questions, I would be most appreciative: 1) What is the gearbox in my truck and is it specified as a five speed with the airshift splitter as a separate casing or does the whole core/splitter combo have it's own designation as one unit? From what I've been able to gather it must be either a TRL-107/107x or TRDL-1070/107x 2) How can I identify if the engine has 2V or 4V heads? 3) How is this PTO arrangement described in the service manuals? I have included a couple of pics of the truck and airshifter for reference. With thanks.