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Wanted to document my new aftermarket wiring setup in 2000 F-body
Subject to change with additional improvements over current layout.
Innovate LC2 gauge and wideband
Fuel Pressure Gauge
Trans Temp Gauge
Oil Pressure Gauge
SLP Line Lock
DMH dual electric cutouts
4L80E swap
Jakes D3 transbrake
Transbrake activation LED
Dakota GSS-3000 Gear Shift Sending unit
DGS-1 Gear shift indicator
B&M 80842 Aftermarket Shifter
-Transbrake is activated when car is shifted into reverse so that button doesn't need pressed
-Momentary switch for activating transbrake while in D3 position
-Wiring setup so that when activating brake in D3 position, reverse lights don't come on
-Factory Neutral safety switch wiring taped into so that rpm jump at idle occurs when shifted out of park, similar to OEM
-12v ignition tapped into at OEM fuse box and routed through relay to split off source to multiple outputs
-4 awg line from battery split to dual 8 awg to provide accessible grounds in cabin
-8 awg line from battery to provide accessible constant power in cabin
-Relays and fuses accessible from glove box
-Battery relocated to rear
-Kill switch
Last edited by 5.7stroker; Oct 11, 2023 at 01:31 PM.
I very highly recommend that you also run a 2AWG Negative Cable from the Body of the Alternator, directly to the Battery (does not touch anything else. no chassis ground connection).
Let me know if you need anything!
I am currently having Sales on Motorsports Grade Battery Cables, Connector Pigtails, and Adapter Harnesses.
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Last edited by vorteciroc; Jan 4, 2023 at 08:14 PM.
I've read that the use of a relay on the transbrake button will slow it down. How many amps does the TB button need to be rated for if not using a relay? 15 amps or so? Not sure how many amps the AC Delco 4L80E A/B solenoids are?
I've read that the use of a relay on the transbrake button will slow it down. How many amps does the TB button need to be rated for if not using a relay? 15 amps or so? Not sure how many amps the AC Delco 4L80E A/B solenoids are?
A "Conventional" Relay can absolutely add Time/ Slow the release of the Brake...
What works quite well in this situation, is a very fast acting Solid State Relay.
MANY PEOPLE, including myself use a Holley/ NOS Solid State Relay shown below:
(Holley Part: #15620NOS)
These Relays work very well for anything that requires very precise and quick activation/ deactivation.
It also can be used for PWM Circuits.
This is NOT a continuous use Relay!
I use these for the Trans-Brake, Bump-Button, and Nitrous-Oxide Activation Circuits all the time.
This is by far the best option that we currently have.
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Aftermarket wiring 
