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Mod | | | Forums66 Topics128,106 Posts1,056,213 Members48,436 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | I use the clutch disc from an 83-84 2.8L v6 Firebird. Doesn't require any modification to the clutch disc. I've outlined the process in detail on page 5 of my Webshots "Shoebox" album. I've also used the RCF-4201. Both came from NAPA.
As for your gear ratios.....you're correct.....the 4.03 is going to have you short shifting but the .86/3.90 would have you turning about 2200 @60 mph with plenty of throttle/rpms left in reserve and the ability to drop down towards 45 mph without a downshift. The .72 T5 isn't that much of an improvement in regard to the short 1st gear.
As for the driveshaft.....I've found that the driveshaft from a S10 T5 shortbed pickup can be used without modification by moving the spring pad 5/8" to the rear...which centers the rear wheels in the bed wheel well. Hope this helps.
Dave
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