Cummins Drift Truck a la Dum-Dum

[Dum-Dum]

If only I lived near london, would be all over this project if I did! Personally think it would be more win with a TH400 behind it and big 9" rear end, then you can really lay into the motor and have some serious fun, that and plate up the chassis somewhat from what it is at the moment!

I know you'd be all over it if you were closer. I do intend to bring it down to you when it's done for some fettling and to make sure a diesel is back to the top of your power board.

The Th400 isn't my thing but rear axle upgrades are on the cards as I've been watching too many videos of Americans running land speed records in RWD bib block V8 cars. It would be cool to have something hat would run down in the 10s on a 1/4 mile and I'd probably need a 2:1 ratio to get the right top speed with a little head room.

If you need another engine crane whenever, for whatever.  Gimme a shout.

It'll just sink too, I tried it with the weight split between my crane and my trolley and all 10 wheels were sinking.

It's a tough one with regards to the back axle ratio as normally larger axle from big vans and 7.5 tonners have a ratio of 4.5 upwards,
the other option is go to the scrappers and remove the whole rear subframe assembly from a 530d bmw, they have a ratio of around 2.5 and the post 2011 cars can handle 550 + ft.lb, the gearbox you have out of the leyland roadrunner will fail earlier than that.

Yeah the 550lb/ft capability might not be enough, the engine makes 400lb/ft as standard and will quickly get up to 1000lb/ft. Also for now I can get 6 stud wheels with tyres cheap, sets for BMWs (or anything else RWD) aren't as cheap. The ZF gearbox takes plenty of power standard as lots of people are using them, obviously it's not perfect but it's a start. Still watching what I want on ebay, hoping I can low ball the bloke when I get my next lump of money from work probably mid January.

If you can mock up mounts with thin wood, let me know, i have a weldking on hand who can get them lasered up and then welded. Do a seriously good job for very little

Thanks for the offer dude, but I really have decided that I'm just gonna buy a set. I might speak to you if I need something lasering up for the gearbox mount.