TRIUMPH TR-4 HUB PULLER (uses 1-7/8" x 8 tpi threads on rear HUB)

(should also apply to TR-3)

discovered the design here:

A simple solution for separating axle and hub.

found out more here:

Rear Hub Remover

Part Number

Qty
Price Each (2022)
Grade 2H steel nut, 1-7/8" x 8 tpi, McMaster-Carr # 90521A037
1
$14.24
Grade 5 steel bolt, 1-1/2" x 6 tpi, 5" long McMaster-Carr # 91283A452
1
$17.12
Grade 8 steel nut, 1-1/2" x 6 tpi, McMaster-Carr # 90499A041
1
$7.41
Multipurpose 110 copper bar 1/4" x 1-1/2" x 6" McMaster-Carr # 8964K851
1
$20.30

 

another more versatile approach:

Rear Axle and Hub Separator