UMI A-arm torque specs
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Joined: Aug 2003
Posts: 1,644
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From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
UMI A-arm torque specs
UPS is supposed to drop off my UMI A-arms tomorrow. I'm not sure if they come with instructions or not? If they don't does anyone know torque specs for the A-arms to K member bolts and the ball joint to spindle nut?? Thanks
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Joined: Jul 2001
Posts: 3,204
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From: New Boston, IL, USA
Car: '90 Formula 350
Engine: 383 SBC
Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall
Axle/Gears: 10 bolt 3.23
Re: UMI A-arm torque specs
When I installed my Spohn A Arms I used the Haynes manual. I think it was 85-lbs for the spindle nut and I think the stock rating on the inside which is like 50+ lbs made the tubular k member's brackets actually flex so I went with around 35 lbs. I wouldn't think the factory piece would flex though.
Thread Starter
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: UMI A-arm torque specs
Spoke to UMI the other day...60 ft.lbs. on the A-arms to K member bolts and 70 ft.lbs on the ball joint nut or a little more to line up for the cotter pin.
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