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Clutch head screws
#1350598 Wed Mar 18 2020 10:26 PM
Joined: Mar 2017
Posts: 264
L
LeeD Offline OP
Shop Shark
I was removing the transmission floor cover and had some trouble with the clutch screws. The driver set I have has sizes 3/16 and 1/4, but one is too big and the other too small. I got the 3/16 to work, but I feel that if the screws had been really tight I could have easily stripped them. Once I got them out I tried cleaning them (thinking that maybe they were just full of paint and stuff so the 1/4 would not drop in), but that did not help. My question is am I doing something wrong? Or is there a 7/32 size out there somewhere?
I could grind the 1/4 inch down a little bit if necessary.
Thank you,

Lee.


1956 Chevy 3200, 235 w/3 speed
Re: Clutch head screws
LeeD #1350705 Thu Mar 19 2020 06:07 PM
Joined: Aug 2017
Posts: 508
S
Shop Shark
Lee,
My two cents worth: the new clutch head drivers are a hair off the original size, maybe just mass produced?. I did shave a hair off two of my ( socket set) drivers to make a tight fit.
I also bought a NAPA set (screwdriver style) they seem to fit better than the socket set.
Todd

Re: Clutch head screws
LeeD #1350707 Thu Mar 19 2020 07:07 PM
Joined: Apr 2008
Posts: 798
F
Shop Shark
Would a piece of emery cloth tighten the grip enough?


Ed
Re: Clutch head screws
LeeD #1350712 Thu Mar 19 2020 08:15 PM
Joined: Apr 2007
Posts: 797
L
Shop Shark
Lee,
I don't think there is 7/32 size in clutch head, at least I have not seen a fastener that size on my trucks. My drivers are from NAPA, somewhat pricey, but fit very well the fasteners on all my Chevys.
Kent

Last edited by Lightholder's Dad; Thu Mar 19 2020 10:06 PM.

1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix
Re: Clutch head screws
LeeD #1350758 Fri Mar 20 2020 02:51 AM
Joined: Apr 2016
Posts: 567
M
Shop Shark
Here is what sizes I have in my collection. 5/16. 1/4, 3/16, 5/32, 1/8, 3/32.

Attached Files
clutch head bits.jpg (229.28 KB, 267 downloads)

Old enough to know better, too young to resist.
Re: Clutch head screws
LeeD #1350794 Fri Mar 20 2020 12:26 PM
Joined: Mar 2017
Posts: 264
L
LeeD Offline OP
Shop Shark
Thanks for all the replies, sounds like my best bet would be to go to NAPA and find a good set. In the meantime I’ll grind a little bit off the other set to make them fit.

Lee.


1956 Chevy 3200, 235 w/3 speed
Re: Clutch head screws
LeeD #1350848 Fri Mar 20 2020 06:23 PM
Joined: Jul 2018
Posts: 165
P
Shop Shark
I have a set of clutch head bits, but have also ended up using a regular flat screwdriver to remove some clutch head bolts when the bits didn't have a snug fit and was worried about rounding them out.


A 28 year old with a soft spot for old stuff!
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1949 Chevy 3100 (In the family since new)
1955.5 Chevy 3100 (Dad's truck)
1958 Chevy 3800 w/ 9 foot bed (Current project)
1959 Chevy Spartan 100 (10400)
Re: Clutch head screws
LeeD #1350858 Fri Mar 20 2020 07:41 PM
Joined: Jan 2010
Posts: 4,624
D
Shop Shark
I tried to save as many of the clutch head screws I found on my 50

Don’t think I ran into the oddball size

Re: Clutch head screws
LeeD #1350936 Sat Mar 21 2020 07:39 AM
Joined: Dec 2014
Posts: 718
M
Shop Shark
I bought a set of cheap clutch head drivers from a chain store and they didn't fit Chevy screws. So I got the set from Classic Parts and they worked perfectly.


1951 Chevy Panel Truck
Re: Clutch head screws
LeeD #1350953 Sat Mar 21 2020 12:39 PM
Joined: Mar 2017
Posts: 264
L
LeeD Offline OP
Shop Shark
I am in Dallas for work (enjoying all the closed restaurants!) and won’t be home for a couple of weeks. I’ll try grinding down the 1/4 inch and see how that works. Maybe I can find an open NAPA store around here and buy a set. It would be nice to have a set that will fit in my magnetic screwdriver; my current set only works with a 3/8 ratchet.

Thanks again,
Lee


1956 Chevy 3200, 235 w/3 speed
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