Even with 5 hp you should have able to change gear to 2nd. Something is not right.
@M1A1cruiser What’s your top speed in low range? Do you have enough power to change all gears through?
15W40 is too thick for winter use. I use 5W40.
Mine 3B starts quite easily without glowing even in freezing temperature (-5°C). But it’s quite low mileage engine (176 tkm/110 tml).
https://a.aliexpress.com/_EQXFwdf
+ https://www.onlineautoparts.com.au/products/Greasable-Suspension-Shackles-Pins-Polyurethane-Leaf-Spring-Bushes-Kit-for-Toyota-Landcruiser-40-60-Series-BJ40-BJ42-BJ60-FJ40-FJ45-FJ60-FJ62-HJ45-HJ47-HJ60-HJ61-SKTL4060/ZPN-02500
Then some fabricating, including...
This is not so awful price to be Icon-brand product: ICON FJ Dash Grab Handle (GHSSS11) - https://shop.icon4x4.com/products/dash-grab-handle-ghsss11
Not original style though.