Steering wheel boss kit

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Aftermarket Steering Wheel Adapter Hubs

Overview

Only a few Datsun models used the small diameter steering column shaft, including the B10, B110 & B210. The B10 used blinker canceling pins that were relatively close together & this made it unique. The B110 & B210 share the same specs so the hub/boss is interchangeable between these two models.

Most other Datsun models, including the B310, used a larger diameter shaft & the boss for any of these will be too big in the hole to fit the 1200.

Conpatible

• 1970-1973 B110 Datsun Sunny 1200
• 1973-1978 B210 Datsun Sunny B210/120Y
• 1977-1979 S10 Datsun 200SX/Nissan Silvia
• 1970-1977 C120 Vanette/Sunny Cab
• 1978-1982 N10 Datsun 310/Nissan Pulsar

Horn

Horn contact in the steering column rides on the bottom side of the hub
Post 483411 Post 483411

With two-wire Horn Button:

• earth wire
• Horn trigger wire

With single-wire Horn Button

• earthed via the screws/fasteners
• Horn trigger wire

Three-bolt Steering Wheels

4590

Grant 4590 steering wheel installation kit (adapter hub a.k.a "boss kit") will work with APC, Superior, and Grant 3-bolt steering wheels. It has a die-cast hub adapter and horn button (with spring), Grade 5 bolts. Fits all Grant Classic Series, Challenger Series and Signature Series Steering Wheels. Use the cancel roll-pins from the original wheel.

Grant 4590ᴳ

NOTE: As of January 2012, there are a rash of reportsᴳ that the latest Grant 4590 model sold on eBay does not fit the 1200.

The old Grant 4590 DOES fit. And presumably the version sold by Grant and other major retailers does too.

Grant no. 4590 fits
* 1976-78 F10
* 1979-82 310
* 1974-78 B210
* 1971-73 1200
$39 Manufacturer's Suggested List Price (2021)
$36 Summit Racing (2021)
$37 Jegs (2021)

 Post Cover (adapter/column cover) available in:
 * Matte Black
 * Chrome (optional)

No. 470-3592 does *not* fit the 1200, but fits:
* 1970-83 240Z,260Z 280Z
* 1978-85 Nissan pickup 
* 1980-83 Nissan SX200 
* 1979-83 Datsun B310
* 1973-75 Datsun 610 
* 1974-75 Datsun 710

Six-bolt Steering Wheels

Kit Personal for B110 (1200) & B210 (120Y)
Album 25464

MOMO

MOMO boss kits will fit all Steering Wheels with 6 x 2.75" (approx. 70 mm) bolt pattern (such as MOMO, SPW, Netami, Sparco, Mugen ... etc), 2-6/8" distance between center of both opposite screw holes.

MOMO No. 3504 fits:
* B110 (1200)
* B210 (120Y)
Album 19528

MOMO No. 3503 fits:
* Datsun 240Z,  260Z, 280Z, 280ZX, 
* Datsun 510, 610, 810 all yrs
* Datsun/Nissan Trucks up to 1986

Generic

$30 including shipping off eBay
Post 480068

Multi-pattern Boss

SAAS boss kits suit most sports wheels Including, Saas, Autotecnica, MOMO, Boss, Victor, Oba, Rspeed, and more.

SAAS
13-BK71L 120Y (B210)
13-BK7BL 1200 (B110)
13-BK8AL B310,510,610,810,910
13-BK8AL 260C
13-BK8BL 240Z, 260Z
13-BK112L 280ZX
13-BK144L 300ZX Australia del. only

Slim Boss Kits

Short boss kits are totally worth it to maximize steering wheel to body distance.

Randoli: i got a boss kit (HKB Sports made in Japan) through disco bob (look him up on this site)and it was about 12mm shorter than the previous one. i find now my knuckles sometimes flick the indicator stalk. i'm 6'2" and the reach is perfect in a standard seat. so how short is too short

Slightly bend the indicator stalk to the right position. Ring spanner slid down a 1/4 and bend.

datskool110 was making kits

Wardman Engineering can custom machine any boss you would like , short , long , big ,small , but they are custom made from billet 6061-t6 so they are a bit more expensive than eBay specials, but you will have the best one for your application discussion

From $150

Alternatively, consider using a wheel with 'spokes' that are relatively flat, so they don't space it back further.