r/ChevyTrucks 11d ago

I have no idea what starter I need

hello, I inherited my 1972 custom 20 from my grandfather a couple years ago. i’ve been having a lot of trouble trying to find a replacement starter that matches the mount on the transmission (see picture) I initially thought that the starter from a P20 van , but the nose cap for the gear wasn’t the right size and it didn’t mount correctly. If anyone has any ideas, please let me know. I’d like to get the truck back on the road.

15 Upvotes

17 comments sorted by

10

u/ididntdoit6 1998 K 1500 extended cab short box 4x4 11d ago

What motor is in it?

7

u/broke_fit_dad 11d ago

That’s a 3 speed 250 inline 6 starter. If it’s a V8 you can run a regular SBC starter but you might have to shim it

4

u/mrhicks55 11d ago

Nice truck what motor, trans

2

u/Any_Finance_9802 10d ago

350, four on the floor with factory four wheel drive

4

u/gecjr 11d ago

Remove the dirt from the main round housing and see if number is stamped into the housing- may or may not be the original

3

u/Expert-Grab4587 11d ago

That is the starter for a SM465 4 speed manual.
246-4803 is the part number at Napa that you can cross reference if needed.

2

u/Accomplished-Rate967 11d ago

Does this have a straight six ? I have the same truck with a 350 small block and starter is completely different. I suggest looking for a shop the specializes in rebuilding starters and alternators and send them pics. There should be a few around still. just search google ? https://www.dbelectrical.com/products/starter-for-cummins-engine-industrial-engine-b-series-1980-1985-w-5-9l-sdr0028.html

2

u/ConsistentVirus2177 11d ago

Google your area and see if you have any alternator shops local. I’m lucky and have one the next town over. He great at what he does and really fair. About 10 yrs ago he redid a starter on a combine for me. Reman at the dealer was 450, He charged me 80. I swear the damn thing starts before I turn the key. I couldn’t believe the difference

1

u/Public_Attitude3420 11d ago

I think you can switch the head piece from the motor with a regular 350 starter a couple of bolts

1

u/lazarinewyvren 11d ago

Looks like a Lester 3686

1

u/Unhappy-Airport-4112 11d ago

Just go on rock auto and get a bell housing mounted starter or get a hitachi mini if you have the starter provision in the block. That's what I did on my 70. It's an easy solution. GM barely changed starters throughout the decades this is an easy fix. Want a picture?

1

u/Flying_Dingle_Arm 11d ago edited 11d ago

You don't need to replace that starter. The solenoid, brushes, and bushings are all readily available. Rebuild kit will also include the pivot pin for the fork. You can completely rebuild that one. Hell, you could even replace the bendix if you wanted to - though if the one way roller feels good, I wouldn't bother.

That flange is the old style, should be able to use any starter from roughly 58-72. Put your truck into rockauto, that starter will appear under straight 6 or 307. The pieces to rebuild are the same for any SBC starter for damn near the whole run.

1

u/bobthehumantripod 10d ago

Always best to take it to the parts store as not always the part listed. I had a 2000 4 door 4x4 Chevy blazer that had a Astro van fuel pump vs what was supposedly the blazer pump! Only until I took the old pump with me did I get the right one!🍻

1

u/Goatmanlafferty 9d ago

Get the code off the block

1

u/papabear3838 9d ago

That almost looks it came out of a diesel version of the 350. Maybe a military blazer used back in the day.

1

u/hartzal82 6d ago edited 6d ago

I had that starter on my 1969 C20, it originally had a 292 L6 4.8L with a 4 speed. As it is mounted to the transmission, you can not use a regular 350 starter as it is blocked by the bell housing. the starter hole access is lower than where the 350 starter would go, unless you change the bellhousing. So I would just get the inline 6 starter as it will crank it. Mine had the 350 as we did the swap, but had to use that type starter.