Early Bronco Steering Box Identification?

robsim111 · Mar 25, 2019

I was wondering if anyone could help me identify this as a 6 or 4 ratio box. I feel like there isn't a S/N identification system, and am hoping anyone can give some insight. I put the pictures in my google drive for quick viewing.

https://drive.google.com/open?id=18egjr_RCEgcC9E36ORtkqxHoA_4vpr41

langester · Mar 25, 2019

Some of those boxes have been modified to be a 4 turn box. The easiest way to find out what you have is to put a pair of vice grips (gently) on the input shaft and count the turns on the box. I am sure someone else will chime in with other thoughts as well.
Good luck!

robsim111 · Mar 25, 2019

It's a 4 ratio!

Viperwolf1 · Mar 25, 2019

Date code and input shaft says 4 turn.

Broncobowsher · Mar 26, 2019

OK Viper, what's the difference on the input shaft that tells them apart?

Viperwolf1 · Mar 26, 2019

Broncobowsher said:
OK Viper, what's the difference on the input shaft that tells them apart?

Good thing you asked because I actually got that backwards. It's an early style input shaft. Some time in '76 they went to an input with a groove toward the end.

Broncobowsher · Mar 26, 2019

So if there is a groove around the input shaft that will be a 4-turn box being that it is a late '76 or '77.
Full skinny groove, not the recess for the pinch bolt.

Without the groove it is probably a 6-turn box. Unless it is an early '76 box or one that has been reworked. At which point you would need to know the date on the tag or check by turning it. But assume it is a 6-turn.

I think I got that right.

Viperwolf1 · Mar 26, 2019

Broncobowsher said:
So if there is a groove around the input shaft that will be a 4-turn box being that it is a late '76 or '77.
Full skinny groove, not the recess for the pinch bolt.

Without the groove it is probably a 6-turn box. Unless it is an early '76 box or one that has been reworked. At which point you would need to know the date on the tag or check by turning it. But assume it is a 6-turn.

I think I got that right.

Correctamundo.

Early Bronco Steering Box Identification?

robsim111

New Member

langester

MASTER OF MADNESS

robsim111

New Member

Viperwolf1

electron whisperer

Broncobowsher

Total hack

Viperwolf1

electron whisperer

Attachments

Broncobowsher

Total hack

Viperwolf1

electron whisperer

Similar threads