July 6, 2020

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by Bret Schmerker
Fri Nov 09, 2018 6:51 am
Forum: REAR AXLE / DRIVE SHAFT
Topic: Non-OEM Axle Swaps, Revisited
Replies: 6
Views: 3703

Re: Non-OEM Axle Swaps, Revisited

As far as I'm aware, the Express (except City Express) and Savana use the same centerline propshafts as all General Motors C/K/R/V pickups and chassis-cabs and G-series vans and chassis-cabs. General Motors had a bit of a shoehorning problem in the M-body that the powertrain offset to starboard solv...
by Bret Schmerker
Sat Oct 27, 2018 8:11 am
Forum: ELECTRICAL
Topic: Retrofitting trailer wiring on a 1997 Safari
Replies: 5
Views: 3657

Retrofitting trailer wiring on a 1997 Safari

For a 1997 GMC M11006, I've plans to fit a six-circuit isolator for the trailer wiring, so that any problems in the trailer not take out the van's lights in the process. I've ID'd all but two wires on the jack compartment stub harness (viz., 9 - 0.8 BR Tail Mrkr Lic; 18 - 1.0 YL, Left BT; 19 - 1.0 D...
by Bret Schmerker
Tue Sep 18, 2018 5:56 am
Forum: REAR AXLE / DRIVE SHAFT
Topic: Non-OEM Axle Swaps, Revisited
Replies: 6
Views: 3703

Re: Non-OEM Axle Swaps, Revisited

:cheers: Thanks, @Herbie, for the scoutwork. For my 1997 SLE, I'm looking long-term at dropout-type full-floats with unequal-length shafts and tubes to match the stock powertrain offset to starboard. The 9" Currie, which introduced major improvements long after Ford Motor Company discontinued 9" pro...
by Bret Schmerker
Tue Sep 18, 2018 5:26 am
Forum: NON-STOCK ENGINE SWAP
Topic: Astro V8 5 speed
Replies: 6
Views: 4079

Re: Astro V8 5 speed

:cheers: Sorry to bump an old thread, but I've info for @Logan on other candidate gears. Richmond Gear/Beloit once produced a ROD six-speed, which I reckon would have made the best installation, as all forks use a Long Machine & Tool external shifter; I'd have advised the 22:37 input/fifth gears, 41...
by Bret Schmerker
Tue Sep 18, 2018 4:58 am
Forum: GENERAL PROCEDURES
Topic: composite headlight conversion 2005 safari
Replies: 7
Views: 6113

Re: composite headlight conversion 2005 safari

:cheers: Sorry to bump an old thread, but I've a related parts hunt. My 1997 Safari SLE shipped with the Guide/GM composite headlamps pre-installed (also true with the Astro LT and Safari SLT and SLX), but I need to drop the marker/park/directionals to where they are on all Astros (plus base Safaris...
by Bret Schmerker
Tue Sep 18, 2018 4:25 am
Forum: GENERAL PROCEDURES
Topic: Fuel Pump - Fuel Sender Assembly - Replacement Procedure
Replies: 19
Views: 28713

Re: Fuel Pump - Fuel Sender Assembly - Replacement Procedure

I ran across a Japanese second source: We know about the AC-Delco MU1782 (GM P/N# 19180091; FRU# 19331282, 25178736), a design upgrade for my 1997 SLE. But apparently NIPPONDENSO wants in on the backport action, and their Fuel Pump and Sender Assembly SX2774 is advertised as having an improved pump...
by Bret Schmerker
Mon Sep 17, 2018 6:10 am
Forum: DRIVETRAIN
Topic: Converting 99 astro to 6 lugs...
Replies: 11
Views: 5801

Re: Converting 99 astro to 6 lugs...

Concerning the 6-on-5-1/2" spindles, would I have to backport the 2003-05 steering knuckles to my 1997 SLE to use them? Whereas my current set-up uses Passenger (viz., Caprice/Roadmaster) spindles, 2003-up saw C/K-1500 spindles forward. Of course, the larger lug pattern would better accommodate a f...
by Bret Schmerker
Mon Sep 17, 2018 5:36 am
Forum: TRANSFER CASE
Topic: How to wire up a NP 236 in place of a 136.
Replies: 163
Views: 57335

Re: How to wire up a NP 236 in place of a 136.

My approach would be more old-school. As part of an AWD-acquisition contingency, I's investigating what aftermarket hub locks, if any, were available for the S-10/Sonoma to cross-port to the Astro/Safari chassis. I'm also used to manual-shift transfer cases, both chain- (e.g. NP231) and gear-drive ...
by Bret Schmerker
Mon Sep 17, 2018 5:00 am
Forum: GENERAL PROCEDURES
Topic: Transmission filter change and fluid flush
Replies: 14
Views: 26068

Re: Transmission filter change and fluid flush

:cheers: Sorry to bump an old topic, but thanks for the detail photos. My down-as-of-16-September-2018 1997 Safari SLE's gearbox is coming due for an overhaul and I see a LOT of things that could use major upgrade. R Performance Transmission and Driveline Specialties (Oakley, CA, USA) can do the flu...
by Bret Schmerker
Sun Sep 16, 2018 4:08 am
Forum: NON-STOCK ENGINE SWAP
Topic: swap diesel engine to astro or GMC g20?
Replies: 3
Views: 3031

Re: swap diesel engine to astro or GMC g20?

:D Either or both, depending on the engine. The G20 has the room for any of the Detroit Diesel V8's or alternately the Duramax 6600, which I'd back with an 11" dual-disc clutch and an EATON® FO-8407 single-overdrive with dual PTO provisions. The Astro is trickier; my practical set-up would use an ou...
by Bret Schmerker
Sun Sep 16, 2018 3:50 am
Forum: GENERAL PROCEDURES
Topic: Ignition Coil Replacement Procedure (shown with 2003 Astro)
Replies: 12
Views: 14843

Re: Ignition Coil Replacement Procedure (shown with 2003 Ast

:cheers: Sorry to bump an old thread, but thanks, @chemist, for the briefing. My 1997 Safari SLE packs a High Voltage Switch, and the spark coil's probably on the upper intake near the CSFI injection manifold assembly. Upgrading to a sextet of BOSCH® PLATIN+4's and ACCEL® 8.8's off a stock-replaceme...
by Bret Schmerker
Sat Sep 15, 2018 9:07 pm
Forum: GENERAL PROCEDURES
Topic: Expert Question: Retrofitting a Robust Sender to a 1997 SLE
Replies: 1
Views: 999

Expert Question: Retrofitting a Robust Sender to a 1997 SLE

I've a need to harden my 1997 Safari SLE against semi-corrosive fuel. California is infamous for major-brand gasolines that make small-engine survival a SNAFU, and I suspect the pump gas as a contributing factor in the recent "went down HARD" of my 1997 Safari SLE - had ca. 18 gallons 87-octane sti...
by Bret Schmerker
Sat Sep 15, 2018 8:34 pm
Forum: GENERAL PROCEDURES
Topic: alternate Oil filter
Replies: 11
Views: 6133

Re: alternate Oil filter

:cheers: Sorry to bump an old topic, but I've an add: Most Chevrolet Turbo-Fire 262 and Vortec 4300 installations in the M-body (e.g. my 1997 Safari SLE) had the engine oil filter awfully close to the headpipe. I'd first used K&N® Performance Oil Filters in two generations of Ford E-series, and they...
by Bret Schmerker
Sat Sep 15, 2018 8:01 pm
Forum: GENERAL PROCEDURES
Topic: Fuel Pump - Fuel Sender Assembly - Replacement Procedure
Replies: 19
Views: 28713

Re: Fuel Pump - Fuel Sender Assembly - Replacement Procedure

Hi Everyone, Very good info. My 2003 AWD has 130,000. I have changed fuel filter every 25,000 miles or so. I may cut a hole in floor and install hatch. We should post a card board scaled template to show where to cut the floor. Thank you all for great ideas. AP Smart thinking, @Astrophysics! On 199...
by Bret Schmerker
Thu Sep 13, 2018 5:25 pm
Forum: GENERAL PROCEDURES
Topic: Fuel Pump - Fuel Sender Assembly - Replacement Procedure
Replies: 19
Views: 28713

Re: Fuel Pump - Fuel Sender Assembly - Replacement Procedure

Thanks for the advance information on the procedure. As of 13 September 2018 my Safari SLE went down HARD enroute - engine suddenly died and would not restart, on an uphill. No DTC's thrown when it happened. I'd previously changed out the Delphi fuel pump in a now-retired Ford E-250, but the pump/s...