fitting tdi gearbox in a v8

hi, newby here,
lost 5th and reverse gear in my disco, Have been offerd a r380 from a tdi disco, Will this be a straight swap for my box v8 petrol or will i need to mod anything
cheers
dru

you would need to change input shaft and bell housing

jamesmartin said:

you would need to change input shaft and bell housing

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how hard is it to change the input shaft as i only seem to be able to get tdi boxes at a fair price.
Dru

obviously depends its easy if you done a few ,but you need to remove 5th layshaft gear and rev layshaft gear and main casing spread two shafts apart remove old input shaft swap brgs refit new one

jamesmartin said:

obviously depends its easy if you done a few ,but you need to remove 5th layshaft gear and rev layshaft gear and main casing spread two shafts apart remove old input shaft swap brgs refit new one

Click to expand...

hmm no point then because its 5th and reverse that have failed in my box

what has your old 5th gear got to do removing 5th on your new box to fit input shaft

''what has your old 5th gear got to do removing 5th on your new box to fit input shaft''

i dont have new box yet only ones that i can get quickly are the tdi ones, no point in having to strip a new box, would be just as well fixing old one,not keen on taking box to bits lol, prob a bit beyond my skills

well your only other hope is measuring spigot brg to see if tdi shaft would fit if hole machined out

going against the grain, would an lt77 box fit as a tempory box till i find an r380 as i can get one local to me and need the truck on the road again

If both the LT77 and the R380 are fitted to the same engine from a Discovery then they are a nut and bolt straight swap. You will have to swap over speedo sender housing and handbrake as they both differ between the two boxes.