1996 4T60-E HD info?

[robertisaar]

tuning is not an issue for me...

OBD1(DF) is FTW.

[Jimmyfloyd]

The 4t60e-HD was used in all L67 cars (91-95 Series 1, 96 Series 2) for GM. The 96 obviously was the only Series 2. If you needed a computer to control both, that might be an option, but it limits you on the tuning ability. I think only one tuner supports the 96.

[robertisaar]

did the 95 Rivs get the HD as well? assuming it's a supercharged motor anyway...

need more info, could be good for future projects...

[Jimmyfloyd]

Not sure, but there is a 96 SSEi and a 95 Riviera here in the junkyard. Unfortunately, they'll be ccrushed within a week.

[IsaacHayes]

Nothing electronically changed... Just hard parts. Strong diff, but what else?

[robertisaar]

must have been thinking of something else...

i see no reason (electronically) why anyone with any 4t60e couldn't run one...

axles on the other hand...

[robertisaar]

i'll see what i can dig up in alldata...

IIRC, there might be a pressure control solenoid...

[RedZMonte]

Nevermind... Im retarded and didnt read it all the way..

FDR, Hard Parts Stronger, Diff (stronger?), Clutch packs, TQ converter... thoes would be my guess.. thats about every thing i can think of that would be different (based upon what i have heard on the 4T65-E LD and HD)

[IsaacHayes]

Anyone have any info on the 1996 4T60-E HD that was in the C/H/G Bodies with the L67 ???

I've heard it has a better diff, but what else?


All these '96 cars had an L67 and the 4T60E-HD:

C body = Buick Park Avenue Ultra
G body = Buick Riviera (Optional) (This trans had a 6 bolt structural cover, fits L bodies! )
H body = Olds 88 LSS
H body = Pontiac Bonneville SSEI (optional on SSE)

All had a fine pitch 3.29 diff, 37/33 sprocket, 2.93 FDR, 30 tooth VSS ring, and 1897 RPM stall converter.