308 conversion into vh sl/e

[clubsport_replica]

hey guys

getting a 308 wagon this weekend so thought id get a head start on some info.


will the tailshaft and diff fit from the wagon into the vh sedan..

........

[CSD]

Diff from the wagon has different shock mounting points to that of the sedan.

I think with the tailshaft the back section is the same just use your front section. Could be wrong though someone else will correct me if that is the case.

[clubsport_replica]

so ill have to just leave the diff the sle has in it and possibly the tailshaft and find a sedan one or am i able to remove the axles centre and pinion and transfer to the sle diff.
(only worth doing if it ends up been lsd)

[SL/ENUT]

Axles will be to long for the sedan housing. Also, i think the tailshaft in wagons are a tad longer, not to sure on that.

[clubsport_replica]

too long really oh... dont think it worth changing the diff anyway as im pritty sure its a 2.6 ratio so ill look for some decent sedan items later on..

thanks guys

[Not_An_Abba_Fan]

The wagon and the sedan have the same wheelbase so the tail shafts are the same. The only difference is the transmission type for the front yoke. I thought the diffs were the same apart from the shock mount and the wagon having stabilizer bar mounts. The ratios were different depending on the engine and trans combo except LSD, which were all 3.08:1.

*edit* After reading the post above you must have the 308 trimatic, that is the one that had the 2.60:1 diff.

[clubsport_replica]

yeh its a 308 trimatic wagon...

[clubsport_replica]

another question

will the exhaust fit?

[Not_An_Abba_Fan]

No, well...up to the diff it will but the rear end is different where it has to go around the tank.

[clubsport_replica]

good stuff so really up over the diff part will need changing/made

[Not_An_Abba_Fan]

Yes, over the diff and out the back will need a new piece either made or bought.

[clubsport_replica]

thanks mate...

love this forum all the answers ive asked have always been answered the same day

thanks again fellas

[clubsport_replica]

well nealy finished the conversion..

but the tailshaft are differnt i tried seperating them and cant swap the front shafts over,
the wagon one is a tad longer but wont fit in the u bolt craddle uni is too big...

the 6cyl tail shaft fits inside the gearbox but only goes in say 5 cm or less??

and suggestions??

[Not_An_Abba_Fan]

Why can't you swap them over? The centre bearings are the same aren't they? The only drama you may have is that it will be unbalanced and may vibrate.

Just realized the 6 is longer than the 8 so therefore it would have a shorter tailshaft.....

[clubsport_replica]

yeh undid the 6 allen key bolts and the rear shaft of the 6 wont fit the 8 front shaft centre brg differnt size, so i tought id undo the circlip and slide the joint off an dfit the 6's joing to the v8 front half and cant do that either as the spline for the joint is differnt size..

the 6's tail shaft is on the car atm but the front yoke only covers the exposed spling on the gearbox and u can rattle it by hand so it wont be moving with that on there, only thing i can think of is possibly removing the pinion flange from both diffs and swapping them over so i can fit the v8 tail shaft from the wagon

[Zeussy]

can you just change it at the uni joint, not the centre bearing??

or get a different universal joint to fit the 6 cylinder diff?? on the HQ's (1 tonner) I have got a 6 cylinder tailshaft running into a V8 diff, bought the universal with two end caps one size, and the other two a bit smaller..??

Just a couple of Ideas,

I've got a 6 cylinder tailshaft sitting in the garage, but im a bit far away... not sure if it would be any different to what you have already anyway??


how far are they ment to go in?? cause when your suspension goes down, it will slide in?


EDIT: I wrote this post a while ago, and just got around to posting it, so most of it is no good. but ehh..

[clubsport_replica]

yeh i could change it at the uni if u get it with the v8 size (for the tailshaft) and 2 6cyl size (for the diff)......

from what i can see the tailshaft should go into the transmission about 15cm atm it is only covering the exposed part of the transmission shaft..

the front shaft does not move whether car is in the air or on the ground as its bolted solid, the rear shaft moves up down and in out while car is moving

[Zeussy]

Ahh kk yeah...

Its been a while since Ive looked at the old commodore, close to two years, lol, being spending most of my time on the HQ, what you're saying makes sense cause the centre bearing bolts to the floor, no way it can move!!

Haha,

Maybe ring a bearing joint tomorrow? see if they have a uni in there to suit, or see if you can buy two uni's and swap the caps over... just measure the 'length' to the uni, cap to cap, and the 'diameter' of the outer cap, and the diameter of the inner 'shaft' they should be able to sort something out..
thats if you don't already have plans for a V8 diff, or another tailshaft??....

[clubsport_replica]

does anyone know if i can use the 10bolt's tailshaft flange on the diff thats in the sle 8 bolt sals.......

[Not_An_Abba_Fan]

From memory I'm pretty sure you can get the uni joint with the two different size bearing caps to bolt the diff. I think that is the best and cheapest option. The other way you can go is to try and find a V8 sedan diff.

[clubsport_replica]

so i would guess i take both uni joints in to match up too one that has 2 v8 sals and 2 6cyl sals??

and use the v8 shaft on the 6cyl diff

[clubsport_replica]

ok well rang a few places and they arent able to help with the uni.

but one place said bring down both diff yokes and they will supply me the correct yoke to fit the 6cyl diff running the v8 tailshaft... cost about 50bucks

[Zeussy]

ahh no luck with the universal aye?? did they know what you were talking about??

Yoke looks like it could be the way to go then..

[clubsport_replica]

ok can anyone help with the socket size of the pinion flange...i think it maybe a 26 but would like to confirm this..

thanks

[vkberlina]

If I have read correctly your trying to fit a Borgwarner diff flange onto a salisbury diff or visa versa, give up it wont fit, the pinion gear has different number of splines.

Instead of stuffing around trying to work out unis why not do what every other person in this situation does and cut off the end of the tail shaft and weld in the correct end. Then use standard Unis
Have a look on my site for the info on how it is done.

As for balencing, mark your yoke & tailshaft and press it in to the exact same position and your tailshaft is run true & balenced, I did mine and took it in to be balenced and it was within 1/2 a gram the guy asked me why I brought it in and he couldnt belive I managed to get it spot on, since I have had 3 shafts back to him after building a new tail shaft and each time they run true & balenced

cheers
Scott