series rebuild/mods

[LeanneNCharlie]

hi all.

will a series steering box mount too a 90 bulkhead as i have a spare one of these and my series bulkhead is beyond repair.

will a series 3 chassis take a discovery v8 engine and lt77 (short stick) gearbox and work o.k or will a modified shorter prop to the rear axle end up too short to articulate. modifying seat box and bulkhead won't be a problem nor will the welding for new mountings. does anybody have the spersifics of where the new mountings on the chassis should be possitioned?

cheers, charlie.

[Rich_P]

If you fitted the LT77 with the R380 transferbox and retained full time 4WD you may run into problems with the front axle.  Series axles (apart from the Stage 1) were intended for part time 4WD use, not full time four wheel drive.  There's nothing to stop it working as such, just that the swivels are UJ rather then CV and from what I understand it will cause some rather interesting steering!

Any particular reason why you want the Disco transmission?  There are many Series motors about with a V8 in front of the standard gearbox and they're okay.

[LeanneNCharlie]

i have thought about fitting the standard gearbox as i do have the bell housing conversion and the correct flywheel. the reasons for the lt77 box is its just come out of my disco in one big lump attatched to the engine and thought it would be better as its a five speed and would keep up better on motorway runs. i would consider the series box if i could find a decent running overdrive for not so much money. anybody?!

charlie.

[Rich_P]

I don't think you'll see much gain from using the LT77, since the ratios aren't that much above the standard four speed Series box, remember Discoveries and Range Rovers have higher ratio differentials!  My recommendation is to fit early RR diffs to the axles to increase the gearing.  :)

[LeanneNCharlie]

cheers for that rich. it will be a lot easier to fit the v8 if its mounted to the series box and no faffing around making new tunnels. i already have discovery diffs to hand, are they just a straight forward swop and will series half shafts fit or do i use the disco ones?

cheers, charlie.

[Rich_P]

It all depends on the splines on the diffs.  I don't know if the early Disco 1 diffs are 10 or 24 spline.  You'll probably need to check the number of splines on your halfshafts too.  Most Series motors are 10-spline, but some later ones had more splines on the shafts.

[Jim-Willy]

My 2a has a early disco diff in the rear.....  10 spline.

[LeanneNCharlie]

the diffs i have out of the disco are 10 splines so i guess i'll have no problems there then.

on to the next question. is it possible to mount the series steering box on to a 90 bulkhead?

charlie.

[Jim-Willy]

90 bulkheads have been modded to fit series landies before......

[LeanneNCharlie]

are the mods easily done? for example, is it just a case of lining it all up and drilling a few holes or is it more a case of the panel where it will mount needs a few chops and changes?

will i be able to use 90 clutch and brake servo's?

cheers, charlie.

[Jim-Willy]

PM Markyellowseries3 on here he has done this mod.......