The V8 Owners Forum -

I know reverse is below 5th gear on my R380 box, but when engaging it do I need to lift gearstick slightly to engage it without trying to force it in ? Cheers.

No, you don't. It has an internal gate that prevents you slipping into reverse from 5th, but no other lock-out feature.

Cheers bud

For some reason my box rebuilt by ashcroft tranmissions for my sd1 goes into gear before I start up it goes in no probs, but when I start up it won't go into gear full stop! Do these boxes need to warm up first before I back out of my drive? Many thanks.

Sounds like the clutch is not working properly, with the engine switched off and the car in gear can it be rolled along the ground when the clutch is pressed?

I think it might be the pivot post, I changed the original for my shorter sd1 post and that's probably why getting a gear is such a struggle?

If you have access to a welder then do yourself a favour, fill in the hole in the 'ball' on the end of the pivot post with weld then grind and polish the ball so its nice and smooth. It is the sharp corners of the blind hole that dig through the fork arm when the clutch pressed.

The idea of the hole might be to hold grease but it does more harm than good!

The pivot post worked fine on my lt77 box and after speaking with Dave at ash trans we both think I should of left longer post in? So box out, groan, to sort it!

Had the same issue. R380 Box rebuild by TM transmissions.
Appeared to be a bent primary axle.

No warranty as it could be my fault as it could be happened during mating it back to the engine...

the v8 uses the longer clutch arm pivot,
short clutch arm pivot is 2.6 sd1 etc, ive been playing with these recently myself for my twin plate clutch,

I would bet clutch not releasing or the spigot bearing or hole is not deep enough and so the input shaft will not release from the crank

Ian

Does the 380 have synchro on reverse? If not, a check for a dragging clutch is if it crunches going into reverse.

I'll let you all know when I drop the box over the bank hol

Before I take hammer to my sd1 and I've got hammer in my hand as we speak,why is clutch slave cylinder not fitting onto ppushrod ? Cylinder is brand new! Is it because I've fitted longer pivot post? What the f##k is going on with this heap of shite?!!!!!!!!!!!!!

Right. Having calmed down now, if I refit my standard sd1 v8 pivot post and can a use a shorter release bearing, would that work? And, what is meant by clutch drag, and how do I fix that? Thanks.