Thread: Salisbury shaft upgrade needed with Detroit?

Originally Posted by Sitec

I remember fitting a Detroit into my 101 in the UK and couldn't get over how big the shafts were!!! Cheers all!

101 shafts are completely different to 110 shafts - the 101s are much thicker and have different splines - hence the 101 detroit is different to the 110 salsbury detroit.

101 axles are of the type that should have been fitted to the 110s then there would not have been a need to upgrade.

Garry

Originally Posted by uninformed

So Rover axles post 1994 as well then???

stock engine, stock axles and a locker...not for me thanks

read it again....

Sals axles, not rover axles....

Originally Posted by Blknight.aus

read it again....

Sals axles, not rover axles....

Whats the difference, with referrence to the OP, between a Sals 24 spline shaft and a Rover 24 spline shaft?

The factory rover axle is made from the same cheese they use to make the rover car axles from

The axles in the sals are better. (but thats not saying much I've got lego sets with better axles in them than the rover axles)

I havent had to change a sals axle on a military 110 nor had first hand knowledge of a broken sals axle in a military rover (as in seen in person) But Ive done multiple dozens of rover axles.

I have seen many damaged sals axles that have twisted and had the splines worn down on the flange end. (both civy and military)

The only sals axles Ive seen that have broken have had lockers fitted and additional torque (lower pinion ratios or lower ratio tcases combined with more engine) In both cases the axles were expected to fail but for budget reasons were not replaced with better axles (and acompanying drive flanges) at the time of installation of the locker.

if you were on a budget and building up something with a locker in the sals I would be spending the money on upping the front diff and axle as thats the next weakest link. (especially if it was in a full time 4x4 not a series) then updating the rear axles once the flanges and axles being to wear away and as budget permits.

So you can confirm that Sals 24 spline are the same dia as Rover 24 spline but they are made from different material in a Stock, non AUS military LR?

Given the 101 shafts are huge by comparison, but the STD Salisbury shafts are still bigger in diameter than the Rover equivalent.. Like said before by someone else, I too have only ever seen worn splines with Salisbury shafts, and have not broken one (Ran a 110 with a 3.5lt Nissan TD on Rally Recovery in UK, and the guy who owned it was far from light with the right foot). With the TD42 in mind, the plan was to buy a Front Salisbury... That was until I did the research and found out that the shafts are like chooks teeth to find, and the outer shafts/cv's are still std Rover (or cheese grade as has been said before) The future plan now is the Truetrac, which being a solid unit lessens the crown wheel flex, and upgraded shafts and CV's. From what I've heard, Maxi Drive shafts twist before they break... Have bought a Detroit for rear and a Truetrac for front out of US (Lucky 8.. Cheapest by far), as I ran this set up in my off roader for years, I am now thinking my money is best spent with the front shaft upgrade, and run with the STD Salisbury rears...

The weak link in the front is the small 32 spline cv end of shaft and cv. (Going by the fact that your defender looks like its a 300tdi??) Yes the rear shafts are slightly bigger dia, but remember your 24 spline sals side gear are the same spline dia as your front rover diff side gear......speaking of the Rover equivilant, what dia are Sals 24 spline, and what dia are a disco or 90 24 spline rear axle???

The rear in your 130 is going to cop more load transfer in most circumstances than the front. So having stronger shafts there is probably nessecary. If it were me, Id run some aftermarket HD shafts for the rear if fitting any type of locker.

Regarding the Sals front. If you are going to the trouble of getting one and upgrading the hoplessly weak 110 type cvs (which mind you are probably fine for what you want) then getting custom shafts from Hi-Tough is probably the easiest part.

A word of warning.
Break a axle with a Detroit and the Detroit will break too.
A drive axle up grade will save replacing a detroit.
A Detroit will place more strain on a drive axle and if it breaks the detroit is destroyed too.