Author Topic: BOUGHT A 4 SPEED!  (Read 4549 times)

Offline Cooter

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Re: BOUGHT A 4 SPEED!
« Reply #15 on: September 07, 2010 - 12:44:31 PM »
Gentlemen, NAPA sells a "Conversion" bushing for the pilot that's smaller in diameter...

As a RULE OF THUMB only, if the engine came from in front of an auto, then 9 times out of 10, it takes the "conversion" bushing..This isn't ALWAYS the case though, as I've seen it goes either or....There are TWO bushings listed at NAPA...You have to find a GOOD parts counter person though....
1958 plymouth Belvedere 2dr hd top "Christine" [OO)====V====(OO]
1969 dodge Charger "General Lee"         [___|______I______|___]                        
1968 Dodge Dart 2dr sedan 505" Stroker    (O]=0==========0=[O)                
1970 Challenger R/T Clone "Kowalski Special"   (OO) [___________] (OO)




Offline black71

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Re: BOUGHT A 4 SPEED!
« Reply #16 on: September 26, 2010 - 12:37:09 PM »
what is the strength difference between an 18 and 23 spline? where do u draw the line between needing an 18vs a 23

Offline Cooter

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Re: BOUGHT A 4 SPEED!
« Reply #17 on: September 26, 2010 - 03:57:19 PM »
I thought from what I'd always been told that the Ever popular "HEMI", 18 spline 4-speed was a close ratio trans and THAT'S why it cost so much.....Till I found out ALL the Chrysler 4-speeds were close ratio, unlike Brand X's stuff....

I once looked up the Hemi 4-speed ratio and the 23 spline ratio, and there's like 1/2 ratio difference between 'em....To me, that ain't worth the extra $1300.00 you spend, as I've NEVER seen anybody bust a 23 spline 4-speed from just shear power and torque...Now, i have seen 'em broken, but it was due to things like bad bearings, out of spec clearances, no grease in 'em, poor maint., etc. I would say anything on the street shouldn't nor ever will need an 18 spine 4-speed...I've seen 1000 Hp cars with 23 spline 4-speeds in 'em..They weren't driven like granny neither...Now, with all that said, there's some folks on this planet that NOTHING can be produced that they can't break given a chance. I mean, I got one buddy that you give him a rubber hammer and a bowling ball, and he'll fu*k somethin' up....
1958 plymouth Belvedere 2dr hd top "Christine" [OO)====V====(OO]
1969 dodge Charger "General Lee"         [___|______I______|___]                        
1968 Dodge Dart 2dr sedan 505" Stroker    (O]=0==========0=[O)                
1970 Challenger R/T Clone "Kowalski Special"   (OO) [___________] (OO)

Offline Aussie Challenger

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Re: BOUGHT A 4 SPEED!
« Reply #18 on: September 27, 2010 - 07:00:12 AM »
There are at least 4 different sets of gear ratio's apart from the over drive.   :bigsmile:
Dave