He failed to mention that you will need to install a clutch pedal, cable or master cylinder for the clutch, and small things like the pilot bearing, driveline length?, flywheel, and bellhousing?
"massaging" the support means beating it up out of the way to clear the transmission. Depending on ow far it has to be moved it can be a little job or a big one.
The cheapest and easiest thing you can do is keep the transmission that you have now or replace the transmission with a new one of the same style and type.
Talk about costs and mods:
.....C4 $850 new rebuild built for 500HP / 500 Ft Lbs
.....Converter (higher stall) $150
From American Powertrain website:
.....T5 $2795 (500HP)
.....Reverse wiring harness $24
.....Clutch disc (organic) $89
.....add to this the cost of clutch pressure plate, driveline mods (if necessary), and clutch pedal and linkage.
Now the Kit will likely save you some money but it will still be well over the $1000 for a new C4 and converter that will bolt in without mods where your old one came out.
I assumed since his car was an automatic that hanging pedals, linkage etc...was a given to anyone looking into doing the conversion.
As far as "massaging" the rib, yes, flattening it out or simply remove a 6" section of it and replace it with a flat piece of steel like we do.
By the way...a complete conversion kit from automatic to T5 5-speed (includes everything from pedals and linkage, all the way to the driveshaft and everything in between) runs $3700 complete. So yes, it is more than the C4 and convertor you are referring to, but it all depends on if you want to shift gears or go auto.
A complete auto to TKO 5-speed will run you in the $4300 range (give or take $100) and these are brand new with a full 3 year warranty and 2 years to install and activate the warranty as opposed to a rebuilt unit.
The obvious advantage of a 5-speed over a C4 is overdrive. Being able to cruise down the highway to your favorite car show and being able to keep up with the pace of traffic while saving gas and more importantly, wear and tear on your motor is the biggest benefit. Being able to talk to the guy/gal in the passenger seat while cruising down the highway may or may not be a benefit, depending on how you look at it.
Resident manual transmission/driveline guru :hihi:
Tech Sales Support
A Tremec Elite Distributor
TKO, T45, 3650, T5 & T56 Transmission Systems
2199 Summerfield Rd
Cookeville, TN 38506 (931) 646-4836