Originally Posted by
WildBillMassey
That is correct.
The A and B blocks are the upper and lower blocks on the rear of the front bulkhead. The car comes with A blocks but no B blocks are supplied. The part you will need is
http://www.igthobbies.com/product_p/kyoif124b.htm
That set comes with A blocks, B blocks, and the complete set of rear toe blocks (2, 2.5, and 3 degree)
You must change both upper and lower block at the same time and they must match. Going to a B Block setup gives you lower caster angle for more quicker steering response.
I know the Jammin has 7 degrees kickup in the chassis, and 15 degrees in the C-hubs. When using the A-blocks it leaves this as 22 degrees caster, but when using the B-blocks it reduces the caster by 2 degrees, giving a total of 20 degrees.
Is this about the same as the IGT?
Since I changed from an upper arm to an upper turnbuckle I don't use the upper A/B blocks, just the lower. I thought about maybe having someone machine a block that reduces caster even more, like reduce caster by 4-6 degress for a total of 16-18 degrees caster.