:cry: My N/A Auto when downshifts while crusing slowing from I think 2nd to 1st I get tailshaft and diff thump not that bad but does it occasionally noticed it when driving with PWR light on Dash havent noticed it driving with PWR light on dash off Any one had this or can suggest anything Auto was service not long ago ,Diff oil has been changed recently What could it be hmmmmm!!!

when slowing by itself (not manually changing) i can never feel it go into first, probably only does when its stopped but it i drop it back to first manually when slowing, it thumps and bit

:mrgreen: Yeah mine is just by rolling slowly from 3rd to 2nd or it may be 2nd to 1st I am 99% 2nd to 1st tailshaft just thumps or kicks a little But hope someone can shed some help light on this :mrgreen:

yep mine does that, it makes a thump when manually changing auto from 2nd to first Richie

:mrgreen: Bump

i never man change my car i just put it drive itself seen a mate stuff up his auto by doing it always done it he did and 1 day the auto packed up lucky he had a spare in his other 1 hahaha.. Some original photos have not been recovered yet.

The problem cold be backlash in ur diff this means too much slop between ur pinion and diff gears if left ur diff will blo eventually i found this out the hard way in dad's car years ago.

:roll: My diff does thump when auto goes from gear 2 to one downshifting by itself when pulling up at set of lights or in traffic but only if i am going slow but it i was doing for example 60-70ks then brake normally it doesnt thump or backlash on diff Any Ideas any1??? :roll:

I have an idea. This might not be it, but if it is, it's a quick fix. When I had my old VK converted from auto to manual, i noticed that sort of thing after a while. It only did it when under a bit of load, not just uner easy driving conditions. I got my head under the back of the car and found out that the mechanic who did the swap didn;t tighten the bolts that hold the rear uni joint in properly. I figure it could be the same problem even if you guys have manuals. Just look right back near your diff... there'll be some bolts back there... just give em a check.

:mrgreen: Thanx Burgundy Calais ,I will check it out tomorrow and she hopw we go Cheers...

My auto used to do this when it was getting low on fluid (auto fluid). This happened quite often for me as there was a leak from the gear box. It was a stuffed gasket, but now it is all good.. but you said it has just been serviced?? So, what i suggested is all i can offer you. good luck. Kane

I've had the backlash problem with my old diff. Then when i did my auto to manual conversion the backlash was so bad that you could barly drive the car (auto soaked up most of it). Then when it was time to replace the diff we found this sludge on the end of the axles (was oil and iron filings...but was sludge) the diff was on the verge of departing duties. Then after we did the diff swap my mates who fitted the diff, forgot to tighten the diff bolts. and I thought i had backlass in my new diff. But what it was, was loose diff to tail shaft bolts Easy fixed though Some original photos have not been recovered yet.

my auto does the same thing. i have put in a diff that had no backlash in the car it came from (i was in it a few weeks before). so it must be my uni's being worn. i'd be checking them if i were you. i would have changed mine but i'm planning a 5spd conversion at some point so i'll just do it then.

bump :mrgreen: