What’s the difference between an r154 and r155 gearbox

[KE70GT]

nothing wrong with using a w5x box but I just want to build a driveline that will handle a turbo beams I want it to handle 300rwks if a w5x can do that ill just chuck one of those in but I don’t think they can handle it like an R154 can

[lolwat]

who uses 1st??? on trailer off trailer, bang into 2nd

[ke_70]

those ratios are actually perfect for my tow car...
shorter 1st and taller 5th

[KE70GT]

I found these two pages I think the two gearbox are the same but the Hilux r155 is heaps cheaper newer and easy to get if you can stand a short 1st gear and your adapting it to a toyota v8 or beams this seems to be the gearbox to get

[Skylar]

I always thought about using an r150 or r155 trans in one of the cars. I'm pretty doubtful about the gearing as I have a 4.556 final gear but have a 3.5 as a just in case too. My only gripe is the shift quality of the r154. If someone can guarantee magical shifting then I'd give it a go. Until then, I'll be on the hunt for a late model z33 trans or a 4 speed dog box.

[jakel]

I've got 4.3 diff ratio Might be a bit tall, ill have to work out the top speed.

[lolwat]

buy 10 of them, before people realise there good

[jakel]

Yeah I have 1 spare, might get another haha. They are piece of piss to rebuild as well which is why I only really need one spare to rebuild if the time comes.

[SamsTA22]

300rwkw is approaching the limit of what a w58 gearbox can handle when connected to a 1jz. But, if you keep it in good service, it should be fine bolted to a 3sgte

2nd is where the issue comes in. You're nearly halving the rpm of your engine when you shift. This, unless you have a tractor engine that doesn't care what rpm its at, is annoying. Especially if you have a high boost turbo or big cam motor where changing from the redline in 1st will barely get you in the powerband in 2nd.

[macca1590]

anyone got any idea what model luxies the r155 is behind?