90/110 drivetrain compatability - Defender Source
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  #1  
Old March 13th, 2013, 04:00 PM
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Chris Snell
87 Ex-MOD 110
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90/110 drivetrain compatability

This is such a rookie question. Just bought a 110 and I don't have it yet but I'm wondering about the compatibility of drivetrain parts between the new truck and my old 90. I have a pile of stuff that I pulled off the 90 before it sold.

For the rear Salisbury, I know that the shafts are obviously not compatible but what about the ring gear and lockers?

In the front, I think that the shafts, CVs, ring gear, and lockers are compatible but I'm not sure. I think I would need some new 24-spline flanges to match my axles.

Can someone school me? I have a bunch of vultures patiently waiting for every part that I don't re-use.
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  #2  
Old March 13th, 2013, 04:12 PM
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Congrats ont eh new rig. If the rear end is a Salisbury, then the D90 stuff will not fit. For the front axle, it depends upon the spline count. On my 83 110 it was 10 spline at the diff end. Your D90 stuff should be 24 spline at the diff end. You'll need to get confirmation on the diff spline count on your 110 to know for sure.

http://www.ashcroft-transmissions.co.uk has some good reference material for you.
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Old March 13th, 2013, 04:16 PM
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What year 110? NAS 110 the front axle is different (10 spline, different CVs, hubs etc.) that on a NAS D90 as is the salisbury.

What do you have that you want to keep.
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  #4  
Old March 13th, 2013, 04:19 PM
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Andy Bard
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A little more info on your 110 is helpful too. You will need to go through it and see what you have if it is a UK import. Mine is kind of a FrankenRover, pieced together from MANY different years so I have to go by each individual piece be it the drive train, axles, or body!
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  #5  
Old March 13th, 2013, 04:22 PM
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87 Ex-MOD 110
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It's a 1987 ex-MOD, freshly out of the military.

I would like to keep my HD front shafts and CVs but only if they are stronger than what comes in the truck. I suspect that they might be, but I'm not sure.

I may want to keep my TrueTrac that I ran in the D90 front. I am still looking at locker options and may go in another direction, though.

I am definitely going to sell my HD rear axles and the Detroit Locker from the D90.

I may want to re-use my GBR 4.11 ring gears but I'm not sure if I'm going to want them after I put a new 1.4 t-case in...and I'm pretty sure that the D90 ring gear won't work on the Salisbury.
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Old March 13th, 2013, 04:34 PM
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Being out of a military its probably a Salisbury rear. Post a picture.
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Old March 13th, 2013, 04:38 PM
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The only thing that is a direct transfer is the TT, but you need the inner 24 spline shafts for the 87 axle.

The other inner shafts are the wrong size.
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Old March 15th, 2013, 12:57 PM
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Jamie Austin
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Quote:
Originally Posted by Rocky View Post
Being out of a military its probably a Salisbury rear. Post a picture.


All 110's had the salisbury, military and civvy, up until the "rover" type rear axle came in.

From about 1993 they had disc brakes on the rear.

1987 would be drum braked rear, 10 spline diff in the front, as standard, BUT.... anything could have happened in the last 26 years.

What's the original military registration of it? 1987 would be about **KE** or **KF** (** being numbers) I've got a bunch of info here on rovers in that era from when I was serving, so might be able to find out the original spec of it. need the contract number too, it should all be on a plate riveted to the side of the seatbox.
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