Convert '75 Auto to Manual?

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Hi...I suppose this has been addressed before, but thought I'd throw it out again: I have a nice '75 with auto....I'm wondering what expense would be
involved in dropping in a 4-speed. I'm aware of what has to be done physically, but not sure if it's practical financially, or who does this stuff around Boston. I've seen the Keisler kits for 5 and 6 speed, but think that's overkill for my weekend/down to the beach driving. Little highway driving. Any input appreciated!
Thanks..paul
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. I've seen the Keisler kits for 5 and 6 speed, but think

Keisler has the complete setup, if your going to do it - do it right. the 5 speed was a trmendus imorovement to my 79 If you want the 4 speed I still have mine along with the shifter and bell housing, youll need to round up the rest kickstart
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I'll second that and add that's I did it once with a donor car. Never again, not worth the time or money. Not a big modification but still not worth the grief. I would still own my '72 if it had the automatic but that's me and probably my age talking.
--
Dad
05 C6 Silver/Red 6spd Z51
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wrote:

==========================================Not going to be cheap, especially since I got the imopression that you were going to farm out the job to a local shop... rather then to do the installation yourself...
If that is the case you will be much better off "financially" selling the auto and buying a 4 speed car in my opinion...
As to how hard it is to do....Not exceptionally hard...I've converted a Chevelle and did not run into any problems.
Just my opinion....If you were doing the job yourself, and you had access to a parts car etc..it can be done pretty cheaply...Thats the route I took with the 68 Chevelle I converted...
Bob G
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I think Keislers conversion kit is about $6k auto to 4 spd Donor car may be hard to find, but 4 speed itself shouldn't be hard to get A vette salvage yard may help Expensive would be Ecklers , corvette America etc for all new parts / sans the tranny of course you now have an auto set up to recoup some of your expenses too
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Bob G. wrote:

============================================The operative word you used was 'expense.'
Mere mention of finances makes me agree with Bob on this one. Another, on the tip of your tongue is probably, 'estimate' -- wrong! That word is spelled G-U-E-S-S.
When the 'bolt-ons' & adapter plates fit as advertised, it's nice. When they don't you get into welding (very dusty) and machine shop work (expensive). Two weeks ago, I had a 13/16" hole machined into an adapter plate for my floor jack. -- $ 42. (Six minutes of setup, six minutes of machine time, five minutes to clean it up & write the work invoice--lowest priced shop in town.)
In '57 I had a spare car and did a Dynaflow to 4-speed conversion--wanted a 'sleeper' for street use. (Personality disorder.) Job turned south when I had it all apart and found that the kits were made for an 'early' production car and my '54 was at the tail end of the run. There were no kit pieces for 'late production' cars. The parts guys at dealerships found parts that would 'adapt' the car back to fit the aftermarket stuff. I did much of the machining in the ships machine shop. Close work was farmed out since shipboard lathes aren't level and cut tapers. The welding was all farmed out--PJ doesn't weld, PJ burns holes! {:-[
When finished, it was a fun car and it worked for me. The liberal 'guess' of $385 had more than doubled. Steep for a car worth about $1600. (Multiply these prices by something between 8 & 12 to get some guesses.)
If you farm out jobs in a metropolitan area, those jobs turn into a series of phone calls, parts searches and having your car moved around the property during work stoppages. You may have to have the car hauled cross-town. The car picks up shop dust and the surfaces get scuffed from people brushing against the car cover when it's temporarily in the back lot. Then, there's the matter of unexpected welding that causes more dust.
During the work, the words are, "I can't go backward on this. I'll spend the extra few bucks to finish the job right," etc.
Or, forget 'expense,' 'finance,' and 'estimate.' Take the car to a respected Corvette shop, tell em what you want and sign them a blank check.
Hope this helps. -- PJ '89 Hookercar '02 e-blu 6-spd coupe
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If you just want a change, have you considered a beefed up 700R4 auto w/od? It can be made to shift without computers, has lower 'start-off' gears, and can be built to shift really as hard as a 4-speed. No comparison to the 350/400 autos! Fun to drive, to manually shift, not to mention fuel economy on a long haul. AND: a much cheaper and more straightforward modification. HTH, s
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