Leo B Posted April 23, 2022 Report Posted April 23, 2022 Hi! Im not good with T-10 Gearbox and need help. I think I have original 4-speed Gearbox which has letters T10-7B and T10B-1. The gearbox itself seems to work ok, but shifter not. Shifter goes reverse too easy and even possible to put 1 and R same time. Also the shifter seems to be very loose. The spring does not look original to me (even two ones and very loose) I see also that the retainer has been treated badly with screwdriver or something like that. Where to get new shifter parts? Is it even better to buy Hurst Shifter Kit or ...?
64studeavanti Posted April 23, 2022 Report Posted April 23, 2022 The Hurst is a much better shifter if you can find one. If you want to stay original, I have a spare Stude shifter. The stock ones were never great. There were 2 redesign according to parts manual. FWIW. I have heard that the Stude shifters are essentially the same Ansen as used in Corvettes and other cars of the era.
chdonley2 Posted April 24, 2022 Report Posted April 24, 2022 I found a nice rebuilt hurst on EBay last year. replaced the sloppy shifter on the Avanti endurance race car.
Leo B Posted April 24, 2022 Author Report Posted April 24, 2022 (edited) https://www.holley.com/products/drivetrain/shifters_components_and_accessories/shifter_installation_kits/parts/3734734 https://www.holley.com/products/drivetrain/shifters_components_and_accessories/manual_shifters/competition_plus/parts/3917308 Or maybe shorter one for Avanti https://www.holley.com/products/drivetrain/shifters_components_and_accessories/manual_shifters/parts/3917535 Order cheaper combo? https://www.ebay.com/itm/273425011676?epid=1639896002&hash=item3fa96693dc:g:To8AAOSwzo9bgGcN Are these solutions?🤭 I will save and try to repair anyway the original for the future. Edited April 24, 2022 by Leo B
64studeavanti Posted April 24, 2022 Report Posted April 24, 2022 When buying the Hurst, make sure you get the shift rods for REAR mounting on the transmission. That should be kit 373 3157. You may need to fab a shift handle to fit in the existing opening. I have heard that some just cutoff the Hurst handle and weld the stock handle in its place.
Leo B Posted April 24, 2022 Author Report Posted April 24, 2022 Thanks 64studeavanti. With your advice I get the correct one. Can I scoose the stick I want like this? https://www.holley.com/products/drivetrain/shifters_components_and_accessories/manual_shifters/parts/3917535
brad Posted April 24, 2022 Report Posted April 24, 2022 Good ol' Dave Thiebault makes a chrome handle that is round and bolts on to the Hurst shifter. It looks completely stock from inside the car. To put a Hurst shifter into an Avanti you either need the complete kit FOR AVANTI or modify the console yourself. There WILL be interference if not. On the Hurst supplied kit there is a metal cover for the console where you have to cut a clearance slot for the outermost rod. Also, you will need to cut a hole for the access to put a socket on the larger mounting bolt.
Leo B Posted April 24, 2022 Author Report Posted April 24, 2022 (edited) Thank You Brad. I will contact Mr Dave Thiebault before I do anything. 👍 Edited April 24, 2022 by Leo B
Leo B Posted April 25, 2022 Author Report Posted April 25, 2022 (edited) Hi, Has anybody used Corvette 59-62 shifter? Including safe reverse. Looks very same 🤔 https://www.ecklerscorvette.com/1959-1962-corvette-shifter-4-speed-transmission-borg-warner-with-white-knob-25-118131-1.html Edited April 25, 2022 by Leo B Added link
silverstude Posted April 25, 2022 Report Posted April 25, 2022 Mike Float recently had some good results with this https://studebaker-info.org/Avanti/Tech/MFloat/MFshifter/MFfourspeedshifteradjust.html
Leo B Posted April 25, 2022 Author Report Posted April 25, 2022 When I saw the photo in Mike Foat's blog, I know where the problem is. In my shifter there is wrong spring + missing some parts. There have to be correct spring + housing + adjusting nut which does not allow the shaft to go thru all levers to the end reverse lever easy. The spring has to work like "progressive" spring which allows shaft to move smoothly between 1-2 and 3-4 and stronger resistance to the end R. Easy to see the whats missing if you look my previous photo and of course Parts Catalogue (pg 80).
mfg Posted April 27, 2022 Report Posted April 27, 2022 On 4/25/2022 at 3:49 PM, Leo B said: When I saw the photo in Mike Foat's blog, I know where the problem is. In my shifter there is wrong spring + missing some parts. There have to be correct spring + housing + adjusting nut which does not allow the shaft to go thru all levers to the end reverse lever easy. The spring has to work like "progressive" spring which allows shaft to move smoothly between 1-2 and 3-4 and stronger resistance to the end R. Easy to see the whats missing if you look my previous photo and of course Parts Catalogue (pg 80). Speaking with Dave a few years ago, he mentioned the cost of new Hurst Competition Plus shifters, customized for Avanti installations, was getting pretty high.....but he also thought that the Stude factory shifter, restored to good working condition, did a good job
Leo B Posted April 27, 2022 Author Report Posted April 27, 2022 Thanks mfg.😊 Like 64studeavanti wrote, "I've heard that the Studen's transmissions are basically the same Ansenes as the Corvettes and other cars of the era." I found this. Looks the same as the Avanti -63. https://www.zip-corvette.com/57-58-4-spd-shifter-w-knob.html This is also interesting if you accept anything other than originality. https://www.zip-corvette.com/59-62-4-spd-shifter-w-knob.html
Footer Posted April 28, 2022 Report Posted April 28, 2022 I can’t speak for the Avanti shifter but I replaced the stock shifter in my 64 Daytona R1 with a Hurst and it was a big improvement. That was back in 1973. If one of you could come up with a time machine we could go back and load up on a lot of fabulous cars and parts that we can only read about now. Let us know how the progress is going. Mike
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