66 replies to this topic

[WhiteA9XS]

toploader , then again i,d rather a tremec TKO600

[antelopeslr5000]

From the options above, have to be a Toploader.

[Dr Terry]

Hi Guys.

Here's how it goes, shoot me down, if you want to.

The best GM 4-speed manual up to the mid 70s, was the Muncie fine spline.

The best Ford 4-speed 'box was the Toploader.

There was also the Borg Warner T10, which was used in many US 'Muscle Cars' of the 60s & 70s.

When GM & Borg Warner merged & made the 'Super T10', this was the best.

In my opinion the strongest US 4-speed manual of the era, was the BW Super T10. All the racecars, including Group C Falcons in the late 70s /early 80s used this box, even Dick Johnson's XD/XE.

Dr Terry

[ozyozyozy]

toploaders are strong, but dont shift with big hp, a number of friends have had them unless you have dog box conversion and a bit of blueprinting there just trouble. magnesium cased super t10, there sick, shifts awesome, strong can handle big hp, they have big input, output and countershaft shafts, and pretty light.
even the early t10`s were a good gearbox, parts are available.

[yel327]

Super T10 and then the Muncie. Bob Jane used a big block Muncie in his ZL-1 Camaro. He did have to cheat a bit to strengthen it up but it was a 7litre 600ft-lb or so torque engine. Standard top loaders will bust behind a 400hp small block, whereas a Standard Muncie will last. Toploaders can be modified to make them last though.

[Struggler]

I vote Super T10. These boxes were designed for cars, toploaders were designed for trucks and shift accordingly.

JMHO

[FLY_AGAIN_XU-1]

Put me down for a Super T10 any day, they,re an awsome gearbox (Rock solid)....

[mr5000]

ive heard the supra turbo boxes you cant get parts for but ive seen a few busted up pretty bad also dont like toploaders because of how they shift never driven anything with a muncie but from what i hear the super t10 is the ducks guts

[yel327]

Here's a funny story about Muncies and Toploaders. My mate had a Muncie in his HK Monaro for 15 years behind a 400hp 350. He gave it a flogging. Blew up heaps of Saginaws and 10-bolts before putting the Muncie and 9" in. Blew the guts out of 3 or 4 9" diffs before putting a mini-spool in, and it then lasted the 15 years. In the end he got scared of breaking the Muncie and put a toploader conversion in. Blew up 3 of these, all rebuilt as new. One was a GTHO box. It's still got a top loader in it as it doesn't get driven much anymore. And the same Muncie that copped 15 years of abuse is now in a WB 1-tonner behind an injected 308, and has been for about 5 years now. Gets used for towing all the time and is still going strong.