Idler Arms 3917581A vs 3917581B - The Supercar Registry

09-17-2020, 06:29 PM

WorkinProgress WorkinProgress is offline

Yenko Contributing Member

Join Date: May 2012

Location: Constitution State

Posts: 506

Thanks: 38

Thanked 193 Times in 104 Posts

The thinner idler arm was standard on all '69 Camaro's and Nova's. Not sure when they changed it to the beefier arm but my guess is around 1971. I believe the '70 Nova's used the same thin idler arm.

Manual or power steering used the same arm.

Sometime around the late seventies or early eighties they made a change to the beefier idler arm. It came with a metric torque nut and no cotter pin hole.

- Warren

The Following 2 Users Say Thank You to WorkinProgress For This Useful Post:
NorCam (09-17-2020), X66 714 (09-18-2020)

« Previous Thread | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT. The time now is 04:40 AM.

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.