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Naycrx

Member Since: 11 Oct 2023
Location: Nottinghamshire
Posts: 92

Optimill steering boss

Morning,

Come to fit our quick release boss this morning, the current mountney boss seems to slip on and off without to much pressure, the optimill one however seems very tight to fit on the splines? I can locate them on maybe 1mm of them , or is this correct? Suppose as the boss gets tighnted down it would go on further?

26th Nov 2023 10:29am

rustandoil

Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 666

2005 Defender 110 Td5 XS DCPU Bonatti Grey

I suggest a quick count of the splines to make sure you have the correct boss

26th Nov 2023 11:11am

Naycrx

Member Since: 11 Oct 2023
Location: Nottinghamshire
Posts: 92

Yes I have just done that, 48 splines on the column and just checked part number, they have sent me a defender 48 slime boss......

26th Nov 2023 11:19am

Naycrx

Member Since: 11 Oct 2023
Location: Nottinghamshire
Posts: 92

Sorry posted twice

26th Nov 2023 11:19am

bodstruck

Member Since: 09 May 2020
Location: Wiltshire
Posts: 784

The 36 spline one on my Puma is tight. I always have to press it home screwing the nut in and have to use a puller to remove it.

Not saying that is right but perhaps not unusual.

26th Nov 2023 1:04pm

Naycrx

Member Since: 11 Oct 2023
Location: Nottinghamshire
Posts: 92

Hmmm.... it will kind of located on around 2mm max of the splines, but I'm unsure about screwing it down incase it hasn't gone on correctly and damage the splines ?

26th Nov 2023 1:41pm

swt

Member Since: 24 Aug 2018
Location: Cumbria
Posts: 149

2008 Defender 110 Puma 2.4 XS CSW Stornoway Grey

I had what sounds like a similar problem. See the following thread:

https://www.defender2.net/forum/post933204.html

The tolerances are fairly precise. I got a replacement boss from Optimill and all was well.

26th Nov 2023 4:43pm

Naycrx

Member Since: 11 Oct 2023
Location: Nottinghamshire
Posts: 92

Brilliant sounds exactly the same . I haven't messed around woth it to much as I didn't want to scratch it etc. Were they ok with taking it back for an exchange?

26th Nov 2023 4:58pm

swt

Member Since: 24 Aug 2018
Location: Cumbria
Posts: 149

Customer service was excellent. I sent them some pictures, sent it back in good as new condition (like you, I was very careful with it) and a new one arrived by return, which slipped on very easily.

26th Nov 2023 6:03pm

JAP

Member Since: 08 Jan 2023
Location: Edinburgh
Posts: 2

2013 Defender 110 Puma 2.2 USW Orkney Grey

Likewise I had a 48 spline boss which wouldn’t drop far enough down onto the spindle to allow the bolt to secure it. I returned it after contacting Optimil and they sent me out a new one which fitted perfectly. It was obviously drilled out slightly more allowing it to drop sufficiently onto the spindle. Really good service from them.

28th Nov 2023 12:11am

Naycrx

Member Since: 11 Oct 2023
Location: Nottinghamshire
Posts: 92

Quick update- I rang Optimill they explained that obviously tolerances can be out on there part or ours- therefore carry bosses in stock that are marginally larger - New one being sent today- Customer service was brilliant. Fingers crossed new one fits

29th Nov 2023 10:43am

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