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Topic: How many splines is on a 75 steering box?

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How many splines is on a 75 steering box? (1/3)
 12/3/19 12:39pm
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray 71 350 engine Flat top pistons Sniper fuel injection Hyperspark ignition Vintage Air air conditioning Borgeson power steering box


Joined: 7/3/2016
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Anyone know how many splines there are on the steering box input shaft on a 1975 Coupe with power steering?

I am planning on installing a tilt steering column and need to know which adapter to order.

One parts site lists it as 25 splines, but my rough count seems to be more than that. . .  The shaft is 3/4 inch in diameter.



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Re: How many splines is on a 75 steering box? (2/3)
 12/3/19 1:43pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


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I believe they are 30 spline, with a 3/4" shaft. It would prolly be best to get yours off and count them, to be sure you order the correct replacement. 👍



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Joel Adams
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Re: How many splines is on a 75 steering box? (3/3)
 12/3/19 10:41pm
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray 71 350 engine Flat top pistons Sniper fuel injection Hyperspark ignition Vintage Air air conditioning Borgeson power steering box


Joined: 7/3/2016
Posts: 256

Adams' Apple said:

I believe they are 30 spline, with a 3/4" shaft. It would prolly be best to get yours off and count them, to be sure you order the correct replacement. 👍

I have an old rag joint that I could roughly count the splines, and it does look like 30 splines.
Thanks!



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